Band 35 b Zeitschrift für Naturforschung 1980

Contents

C o n t e n t s of N u m b e r 1

Original Communications On the Preparation and Crystal Structure of

CaMnBi2 (In German) E . BRECHTEL, G . CORDIER, a n d H . SCHÄFER 1

Oxotitanates with Mixed Valence, II. About Sr2Ti60i3 (In German) J . SCHMACHTEL a n d H K . MÜLLER-BUSCHBAUM 4

Preparation and Crystal Structure of Barium-Mercury-Thiostannate(IV), BaHgSnS4

(In German) CHR. L . T E S K E 7

Preparation, Structure and Properties of a New Modification of Nbls (In German) B . K R E B S a n d D . SINRAM 1 2

Reactions of SbCL with Acetoacetanilide (In German) W . DIETRICH, H . K . EISINGER, a n d H . P . LATSCHA

1 7 Cyclic Diazastannylenes, VIII. The Crystal and

Molecular Structure of an Iminostannylene: Sn3(NC(CH3)3)4H2 (In German) M . V E I T H 20

The Topochemical Reaction of CaSi2 to a Two-Dimensional Subsiliceous Acid SieH3(OH)3

( = Kautskys' Siloxene) A . W E I S S , G . B E I L , a n d H . M E Y E R 2 5

Silicon Compounds with Strong Intramolecular Steric Interactions, IX. feri-Butyl Substituted Di- and Trisiloxanes (In German) M . WEIDENBRUCH, H . PESEL, a n d D . V . H I E U 3 1

29Si NMR Investigations on Polysilanes. 1. Per-chloropolysilanes (In German) H . C . MARSMANN, W . R A M L , a n d E . HENGGE 3 5

Di-/i-iodo-bis[dicarbonyl(di-feri-butylphosphine)-ruthenium(I)](Ru-Ru) and Bis(tri-ferf-butylphos-phonium)di-^-iodo-bis[carbonyl-diiodo(di-icrf-buty lphosphine )ruthenium (II) ] (In German) H . SCHUMANN a n d J . OPITZ 38

Concerning Isopolymolybdate Ions in Aqueous Media in the Range Z ^ 1.14 (In German) K . - H . T Y T K O , G . PETRIDIS, a n d B . SCHÖNFELD 4 5

Cleavage of Tetrahydrofurane by Trimethylchloro-silane and Dialkylantimonyiodide (In German) H . J . BREUNIG a n d V . BREUNIG-LYRITI 5 7

On the Reactions of Trimethylsilyl Difluorophos-phate, Trimethylsilyl Dimethylphosphinate and

Difluorophosphoric Acid Anhydride with TiCL and SbCL, respectively (In German) A . - F . SHIHADA a n d A . T . MOHAMMED 60

Chemistry of Polyfunctional Ligands, 56. Prepara-tion of N-Deutero-bis(diphenylphosphino)amine, as well as the Vibrational Spectroscopic Compari-son with Bis(diphenylphosphino)amine and Lithium-bis(diphenylphosphino)amid (In German) J . ELLERMANN a n d M . LIETZ 6 4

Copper(II) Complexes with Dia- and Paramagnetic Carboxvlate Ligands (In German) R . FEDRIGOLLI a n d K . E . SCHWARZHANS 68

Preparation and Properties of fraws-Dihalo-tetrakis-(pyridine)osmium(II) Complexes (In German) J . BEHRENSDORF a n d W . PREETZ 7 1

Reactions of Coordinated Ligands, VI. Influence of Substituents on the Formation of Tri- and Tetra-phosphines in the Coordination Sphere of Transi-tion Metals (In German) 0 . STELZER a n d N . WEFERLING 7 4

Transition Metal Carbyne Complexes, LVI. Reaction of a Cationic Carbyne Complex with a Carbonyl-metalate. The Phenylketenyl Group as a Bridging Ligand (In German) 0 . ORAMA, U . SCHUBERT, F . R . K R E I S S L , a n d E . 0 . FISCHER 82

Reactions of Dicarbonyl(?7-cyclopentadienyl)-(methylpropiolate)manganese(I) with Bases. The Isolation of Vinylidene and Carbene Complexes (In German) H . B E R K E 86

Reactions with the Arylhydrazones of some a-Cyanoketones E . M . K A N D E E L , K . U . S A D E K , a n d M . H . ELNAGDI 9 1

Studies on Betaine Decomposition of Arsonium Ylides R . S . T E W A R I , S . K . SURI, a n d K . C . GUPTA 9 5

Transylidation Reactions in Arsonium Ylides R . S . T E W A R I a n d D . K . N A G P A L 99

Hydroxylation of Zl5-Steroids with N-Bromosuccin-imide to 5a,6/?-Diols A . M . D A W I D A R , A . A . SALEH, a n d M . M . A B D E L -M A L E K 102

Fluorescein-photosensitized Furan Oxidation in Methanolic and Reversed Micellar Solutions, Part II. Kinetic Analysis N . MIYOSHI a n d G . TOMITA 107

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IV Contents

Notes Some New One-dimensional Compounds: Prepara-

tion and Optical Properties D . L A Y E K a n d G . C . PAPAVASSILIOU 1 1 2

KHgAs(Sb) and KZnAs - Ternary Compounds in a Modified Ni2In-Structure (In German) R . VOGEL a n d H . - U . SCHUSTER 1 1 4

Tetrachloroaluminates, -ferrates and -gallates: AIMIIICU (A1 = Li-Cs, NH4, Tl, In; M n i = Al, Fe, Ga) (In German) G . M E Y E R a n d E . SCHWAN 1 1 7

C o n t e n t s of N u m b e r 2

Original Communications Lithiumtetrahydroaluminate in Ether: an NMR

Study (In German) H . NÖTH 1 1 9

Contributions to the Chemistry of Boron, CVIII. Synthesis and Conformation of N,N'-Bis(boryl)-N,N'-dimethylhydrazines (In German) K . BARLOS u n d H . N Ö T H 1 2 5

X-ray Structural Study of 5-Phenyl-10,ll-dihydro-dibenzo[b, f ]phosphepin-5-oxide D . W . A L L E N , I . W . N O W E L L , a n d P H . E . W A L -KER 133

BaSbTe3 and BaBiSe3. Compounds with BiSe- or SbTe-Layer Structures, Respectively (In German) K . V O L K , G . CORDIER, R . COOK, a n d H . SCHÄ-FER 136

Ternary Phosphides with the ThCr2Si2 Structure (In German) A . MEWIS 1 4 1

Oligophosphine Ligands, I. Convenient Syntheses of the Trimethylene-linked Triphosphines RP[(CH2)3PPh2]2 and their Precursors Ph2P(CH2)3P(H)R (R = Ph, Me) (In German) E . ARPAC a n d L . DAHLENBURG 1 4 6

Crystal Structure of the Iodonitrene Complex, C1 3 V=N-I (In German) G . BEINDORF, J . STRÄHLE, W . L I E B E L T , a n d F . W E L L E R 1 5 3

Intercalation Complexes of Iron(III) Oxide Chloride FeOCl with Alkanols (In German) A . W E I S S a n d J . H o CHOY 1 5 7

Reactions of Metal and Metalloid Compounds with Polyfunctional Molecules, X X V . Thioureidobora-nes and Isothioureidoboranes (In German) W . MARINGGELE 1 6 4

Charge Distribution and Structures of Halogeno-gallates and Halogenoaluminates of the Type

MeIMeIIIX4, MeiMe2"iX7, and C6H6 • CUA1C14. An NQR Investigation (85C1,79Br, 1271, 63Cu. 69Ga) W . FICHTNER a n d A . W E I S S 1 7 0

Photomineralization of Chlorinated Alkanes, Alke-nes and Aromatics on Silica Gel (In German) J . SCHMITZER, S . G Ä B , M . BAHADIR, a n d F . K O R T E 1 8 2

NMR Spectroscopy on Paramagnetic Complexes, X X . Errors in the 13C and XH Spectra of Dia- and Paramagnetic Molecules Introduced by Metallo-cene Radicals (In German) F . H . KÖHLER 187

Preparation and Properties of Sodium and Potas-sium Tetrakis(trimethylsilyl)aluminate Com-plexes (In German) L . RÖSCH a n d G . ALTNAU 1 9 5

?;3-Allyl-hydrogensulfidonickel(II) Complexes (In German) R . B E N N , B . BOGDANOVIC, P . GÖTTSCH, a n d K . SCHLICHTE 200

Methyl Loss from Metastable Homoadamantane Cation Radical (In German) H . SCHWARZ, CHR. WESDEMIOTIS, TII . W E I S K E , K . - P . ZELLER, a n d R . MÜLLER 207

Pyrolysis Mass Spectrometry of Protected Phospho-triester Oligodeoxyri bonucleotides J . U l r i c h , M . J . BOBENRIETH, R . DERBYSHIRE, F . FINAS, A . G U Y , F . ODIN, M . POLVERELLI, a n d R . TÜOULE 2 1 2

Tellurium in Organic Synthesis, VII. Novel Syn-thesis of Telluroesters J . BERGMAN a n d L . ENGMAN 2 1 7

Alkaloids in Tabernaemontana Species, XI . Investi-gation of the Alkaloids from Tabernaemontana quadrangularis - (20R)-20-Hydroxyibogamine, a New Alkaloid from T. quadrangularis (In German) H . ACHENBACH a n d B . RAFFELSBERGER 2 1 9

27-p-Cumaroxy Ursolic Acid - a New Constituent of Ilex aquifolium L. (In German) H . BUDZIKIEWICZ a n d H . THOMAS 2 2 6

Photoisomerization of £rark<?-l-(3,5-Di4erf-butyl-4-hydroxyphenyl)-2-phenyldiazene (In German) E . HOFER 2 3 3

Notes

Further Compounds A3N03: K 3 N O 3 and Rb3N03

(In German) M . JANSEN 2 3 7

Metal Complexes of Phosphinic Acids, X V I . cis-trans Isomers of Planar Palladium and Platinum Com-plexes [RR'PS2]2M (In German) W . KUCHEN a n d R . UPPENKAMP 239

Contents V

The Structure of the Rubidiumtrimolybdate Hydrate Rb2Mo30io • H2O (In German) H . - U . K R E U S L E R , A . FÖRSTER, a n d J . FUCHS 242

Preparation and Properties of Molybdenum Tetra-ethoxide (In German) U . HILLEBRAND a n d E . STUMPP 2 4 5

AggSnTee - a New Argyrodite (In German) P . M A T J E a n d G . SCHÖN 247

Alkynyl Compounds of Transition Metals, X X X V I I I . Complex Manganese(II) Compounds of 1,2-Diethynylbenzene (In German) R . N A S T a n d A . SANTOS 248

ESR of a Cyclic Phosphahydrazidinyl F . A . NEUGEBAUER a n d H . FISCHER 250

C o n t e n t s of N u m b e r 3

Original Communications On Chloro- and Bromomercurates MHg5Xn

(M - Tl, K , Rb, Cs, NH4; X = CI, Br) (In German) K . BRODERSEN, K . - P . JENSEN, a n d G . THIELE 2 5 3

The Crystal Structure of TlioHg3Cli6 (In German) K . BRODERSEN, K . - P . JENSEN, a n d G . THIELE 2 5 9

MO408((CH3)2POS)4, a Molybdenum (V) Oxygen Cubane (In German) R . MATTES a n d K . MÜHLSIEPEN 2 6 5

The Crystal and Molecular Structure of Two Spiro-cyclic Diazadiphosphetidines (In German) D . L u x , W . SCHWARZ, H . HESS, a n d W . ZEISS 269

1,3-Migration of Silylgroups in the Si2NSiN-System - Synthesis and Molecular Structure of l,3-Diaza-2,4-disilacyclobutanes (In German) W . CLEGG, U . KLINGEBIEL, C . K R A M P E , a n d G . M . SHELDRICK 2 7 5

Contributions to the Chemistry of Silicon and Germanium, X X I X . 29Si NMR Spectroscopic In-vestigations on Straight and Branched Silanes (In German) J . H A H N 282

The Structure of BaNi2Si2 and its Relationship to the ThCr2Si2 Structure (In German) W . DÖRRSCHEIDT a n d H . SCHÄFER 297

Preparation, Vibrational Spectra and Crystal Struc-ture of the Deca Bromo //-Nitrido Ditantalate(V) Ta2NBrio3-. A Complex with a Symmetrica] T a = N = T a Bridge (In German) K . - P . F R A N K , J . STRÄHLE, a n d J . W E I D L E I N 300

Chemistry of Polyfunctional Ligands, 57. About Iridium(I) and Platinum(II) Complexes of Bis-(diphenylphosphino)amine and the Oxidative Addition of Small Molecules to Di[bis(diphenyl-phosphino)amine]iridium(I)-chloride (In German) J . ELLERMANN a n d L . MADER 307

Mass Spectrometric Investigation of Boron Chelates, V. Fragmentation of Aromatic Azo Compounds Containing Boron (In German) E . HOHAUS, W . R I E P E , a n d K . WESSENDORF 3 1 6

Boron Chelates and Boron Metal Chelates, VI. The Formation of Boron Chelates of Aromatic Azo Compounds (In German) E . HOHAUS a n d K . WESSENDORF 3 1 9

(AsPh4)2[Re2FN2Cl7], a /i-Fluoro Nitrido Complex of Rhenium(VI) (In German) W . L I E S E , K . D E H N I C K E , a n d J . P E B L E R 3 2 6

A New Preparation of S4N4

M . P . BERTHET, H . VINCENT, a n d Y . MONTETL 329 Oxotitanates with Mixed Valence, III. About

BaTisOie (In German) J . SCHMACHTEL a n d H K . MÜLLER-BUSCHBAUM 3 3 2

Preparation and Crystal Structure of Dithallium(I) Lead(II) Tetrathiogermanate(IV) (In German) G . EULENBERGER 3 3 5

Synthesis and Catalytic Activity of Some Neutral (?;-Cycloenyl)(^-l,5-cyclooctadiene)rhodium(I) Complexes (In German) H . - O . STÜHLER 340

A Study of the Bonding and Geometry in Phospha-cumulene Ylides T H . A . ALBRIGHT, P . HOFMANN, a n d A . R . R o s s i

343 Structural Change of a Linear Polyether upon

Complex Formation. l,ll-Bis(2-acetylamino-phenoxy)-3,6,9-trioxaundecane and its KSCN Complex I L - H W A N SUH, G . W E B E R , M . K A F T O R Y , W . SAENGER, H . SIEGER, a n d F . VÖGTLE 3 5 2

Tricarbonyl(^4-l,5-dimethylene-2,6-dimethylcyclo-octane)iron: Photochemical Synthesis and Struc-ture (In German) F . - W . GREVELS, K . SCHNEIDER, C . K R Ü G E R , a n d R . GODDARD 360

Synthesis and Herbicidal Activity of the D- and L-Methyl 2- [4- (2,4-Dichlorophenoxy) -phenoxy] -propionate Enantiomers (In German) H . J . NESTLER a n d H . BIERINGER 3 6 6

Organic Sulfur Compounds, XLVII . Dimerization of Monothiobenzil to a 1,3-Dithietane and its Cycloreversion (In German) C . B A K a n d K . P R A E F C K E 3 7 2

On the Chemistry of Pyrrole Pigments, X X X V I . On the Anaerobic Photochemistry of 21,24-Di-methyl-aetiobiliverdin-IV-y (In German) H . F A L K a n d K . THIRRING 3 7 6

A Simple Synthesis for Phenothiazin-ols and their Sulfoxides S . K . JAIN a n d N . L . A G A R W A L 381

VI Contents

Di-(2-hydroxy-l-phenazinyl)methane - A Com-pound of Novel Structure from Pseudomonas aureofaciens (In German) W . NEUENHAUS, A . RÖMER, H . BUDZIKIEWICZ, H . KORTH, a n d G . PULVERER 385

Notes The Structure of Nd2Ni04 and its Relationship to

La2NiÜ4 and La2CuÜ4 (In German) U . LEHMANN a n d H K . MÜLLER-BUSCHBAUM 389

On the Compounds CaNi2As2, SrNi2As2, and Ca2.3Ni11.7As7 (In German) A . MEWIS a n d A . DISTLER 3 9 1

Halo-Elpasolites, VI. The First Iodo-Elpasolites, CS 3 B I M I I I I 6 (B 1 = Li, Na) (In German) G . M E Y E R 394

Structural Refinement of the High Pressure - High Temperature Phase of BaGe2 (In German) J . EVERS, G . OEHLINGER, a n d A . W E I S S 397

The Reaction of Antimony(V) Chloride with p-Benzoquinone (In German) G . RETTIG a n d H . P . LATSCHA 399

Transition Metal Complexes of Diazenes, XIV. Photochemical Synthesis and Reactions of (r?1-2,3-Diazanorbornene)Fe2(r?5-C5H5)2(CO)3 (In German) R.BATTAGLIA,P.MASTROPASQUA, a n d H . K I S C H 401

(H30)[Al3(H2P04)6(HP04)2] • 4 H 2 0 - a 2 A l - O - P Linked Phosphate with Hollows Containing Oxonium Ions (In German) D . BRODALLA a n d R . K N I E P 403

A Comment on the Paper "Benzo-1 A4,2-thiazol, a New Bicyclic 10 TI-System" M . D A V I S 405

Erratum 406

C o n t e n t s of N u m b e r 4

Original Communications Contribution to the Chemistry of Boron, CIX. New

Five-Membered Heterocycles of Boron: Triaza-diborolidines Containing Silicon, Phosphorus and Arsenic as Ring Atoms (In German) K . BARLOS a n d H . NÖTH 407

Contributions to the Chemistry of Boron, CX. Synthesis and Reactions of Sila- and Phospha-borazines (In German) K . BARLOS a n d H . NÖTH 4 1 5

Reactivity of Organometallic Complexes Containing Tin-Metal Bonds, IV. S02 Insertion into Phos-phine Substituted and Anionic Triorganotin Complexes of Chromium, Molybdenum and Tungsten (In German) U . K U N Z E a n d S . B . SASTRAWAN 4 2 1

Electrochemical Syntheses, II. Theoretical Aspects of the Electrochemical Synthesis of Complexes (In German) J . GROBE, M . K E I L , B . SCHNEIDER, a n d H . ZIMMERMANN 4 2 8

Metal Complexes with Tetrapyrrole Ligands, X X I V . On the Knowledge of Platinum(IV) Porphyrins (In German) J . W . BUCHLER, K I O N G - L A M L A Y , a n d H . STOFPA

433 Comparison between n B and 13C Chemical Shifts of

Three-Coordinate Boron Compounds and Carbe-nium Ions (In German) B . W R A C K M E Y E R 4 3 9

The Chemistry of the l-Aza-2-bora-3-oxacyclo-pentane System (In German) H . - G . K Ö H N a n d A . MELLER 447

N - H Activation on Os3 Clusters. Preparation and Characterization of Os3(CO)n(NH3), Os3(CO)ii(NHC6Hio) and Os3(CO)io(/M-H)(iu-NC6Hio) (In German) G . SÜSS-FINK 4 5 4

A Convenient Preparation Method of Anhydrous Lithium, Potassium, Rubidium and Cesium Di-thiocarboxylates S . K A T O , S . Y A M A D A , H . GOTO, K . TERASHIMA, M . MIZUTA, a n d T . K A T A D A 4 5 8

Electronic Effects of Aryl and Heteroaryl Groups on the Rate of Nucleophilic Displacement of Chlorine from 5-Heteroaryl(or Aryl)-2-chloropyrimidines by Piperidine D . W . A L L E N , D . J . BUCKLAND, a n d B . G . H U T L E Y 4 6 3

Electronic Effects of Aryl and Heteroaryl Groups on the Rate of Quaternization of 5-Aryl(or Heteroaryl)pyrimidines D . W . A L L E N , D . J . BUCKLAND, a n d B . G . H U T L E Y 4 6 8

The Recombination Luminescence of Tryptophan in Aqueous Glasses, I. Quenching Effect of Electron Scavengers S . YAMASHITA a n d G . TOMITA 4 7 1

Towards a Classification of Singlet Carbenes W . W . SCHOELLER a n d U . H . BRINKER 4 7 5

Conformation Analysis of Benzo-Condensed Eight-Membered Rings (In German) H . MEIER, H . GUGEL, M . BARTH, a n d U . PLÜCKEN

477 Biosynthesis of Riboflavin. Enzymatic Deamination

of 2,5-Diamino-6-hydroxy-4-ribitylaminopyrimi-dine-5'-phosphate G . K L E I N a n d A . BACHER 482

Reactions with the Arylhydrazones of a-Cyano-ketones: Utility of Arylhydrazonomesoxalonitri-les for the Synthesis of Azoles and Azolines

Contents VII

E . A . A . HAFEZ, M . A . E . K H A L I F A , S . K . A . G U D A , a n d M . H . ELNAGDI 4 8 5

Investigations of Quaternary Pyridinium Salts, X . A Condensation Reaction of 3-Cyanopyridinium Salts on Addition of Alcoxides (In German) W . - H . GÜNDEL 490

Sila-Drugs, 16th Communication. Sila-Analogues of Nifedipine-Like Dialkyl 4-Aryl-2,6-dimethyl-l,4-dihydropyridine-3,5-dicarboxylates, I (In German) R . TACKE, A . BENTLAGE, R . TOWART, H . M E Y E R , F . BOSSERT, W . V A T E R , and K . Stoepel 494

Structure of Bridged Photoisomers of Cyclodiene Insecticides (In German) J . SCHMITZER, K . HUSTERT, H . PARLAR, a n d F . K O R T E 5 0 2

Notes The Electronic Structure of Highly Symmetrical

Compounds of the f-Elements, XIV. The Prepara-tion of Bromo-Elpasolites for Optical Measure-ments (In German) H . - D . AMBERGER 5 0 7

Preparation, Crystal Data and Properties of the Quaternary Thiostannates(IV) BaZnSnS4 and BaMnSnS4 (In German) CHR. L . TESKE 5 0 9

New Triterpenoid from Primula denticulata (In German) V . U . AHMAD, Q . NAJMUS-SAQIB, K . USMAN-GHANI, W . FUCHS, a n d W . VOELTER 5 1 1

C o n t e n t s of N u m b e r 5

Original Communications Synthesis of Diorganylamino Substituted Carbodi-

phosphoranes (In German) R . APPEL a n d U . BAUMEISTER 5 1 3

Contributions to the Chemistry of Phosphorus, 96. Preparation and 3 1PN MR Spectrum of Isotopicly Substituted Trilithiumheptaphosphide, 'LisP? (In German) M . BAUDLER, T H . PONTZEN, J . H A H N , H . T E R N -BERGER, a n d W . F A B E R 5 1 7

Nitrido and Oxochloro Complexes of Vanadium(V); the Crystal Structure of AsPh4[VOCl4] (In German) G . BEINDORF, J . STRÄHLE, W . LIEBELT, a n d K . DEHNICKE 5 2 2

A Simplified Synthesis and Reactions of Seleno-carbonyldifluorid (In German) A . DARMADI, A . H A A S , a n d B . K O C H 5 2 6

The Electrolysis of P4/HS03F Mixtures (In German) H . P . FRITZ a n d 0 . S . HUBER 5 3 0

Electrochemical Syntheses, III. Metal Carbonyls and Phosphane Derivatives of Group IV B Ele-ments (In German) J . GROBE a n d H . ZIMMERMANN 5 3 3

Electrochemical Investigation of l-Phenyl-5-mer-captotetrazoles (In German) 0 . GÜRTLER 5 3 9

Organolead Compounds of Mercaptocarboxylic Acids (In German) C . - D . H A G E R a n d F . H U B E R 5 4 2

A New Synthesis of Fluorophosphonato Complexes of Palladium and Platinum (In German) S . HIETKAMP a n d R . SCHMUTZLER 5 4 8

Preparation and Spectroscopical Characterisation of Tetrahalooxalato-osmates(IV) (In German) H . HOMBORG, W . PREETZ, G . B A R K A , a n d G . SCHÄTZEL 5 5 4

Spectroscopically Pure Bis(phthalocyaninato)pro-tactinium(IV) (In German) F . L u x , 0 . F . B E C K , H . K R A U S S , D . BROWN, a n d T. C. Tso 564

Boration Reactions with the N-Oxides and m-Imines of Unsaturated Nitrogen Bases (In German) P . PAETZOLD a n d G . SCHIMMEL 5 6 8

Reaction of Imidodiphosphoric Tetraphenylester with Mercury(II) Oxide and Phenylmercury-hydroxide (In German) H . RICHTER, E . F L U C K , a n d W . SCHWARZ 5 7 8

An Ylide Complex of Ruthenium with Three- and Four-Membered Metallocycles (In German) H . SCHMIDBAUR a n d G . BLASCHKE 5 8 4

Studies on Vitamin B12 and Related Compounds, 50. Synthesis of Substituted Alkylcobalamins from Vitamin Bi2r and Radicals Generated from Aldehydes, Alcohols and Ethers under "Oxidizing-Reducing" Conditions. A New Synthesis of Coenzyme B12 G . N . SCHRAUZER, M . HASHIMOTO, a n d A . MAI-HUB 588

Organometalphosphine-Substituted Transition Metal Complexes, X X V I . Dicarbonyl Nitrosyl Organometal Phosphine Cobalt Complexes (In German) H . SCHUMANN a n d M . MEISSNER 5 9 4

Reaction of Vanadocene with Silyl Azides Prepara-tion and Properties of the Nitrene Complex (C5H5)2VNSiMe3 (In German) N . W I B E R G , H . - W . HÄRING, a n d U . SCHUBENT

599 A Refinement of the Structure of the Nitride

MgSiN2 - a Study by Neutron Diffraction (In German)

VIII Contents

M . WINTENBERGER, F . TCHEOU, J . D A V I D , a n d J . L A N G 604

Dodecamethyl Bisimidotriphosphoramide (TRIPA). A Tridentate Ligand, Part II J . C . P . M . LAPIDAIRE a n d W . L . GROENEVELD

607 Semicobaltates - Alkali Metal Carriers in Hydro-

carbons Synthesis, Properties, and Structure of K[Co(C2H4)(PMe3)3]2 (In German) H . - F . K L E I N , J . GROSS, J . - M . BASSETT, a n d U . SCHUBERT 6 1 4

New Ternary Compounds of Phosphorus and Arsenic with the Zr2Fei2P7-Structure (In German) A . MEWIS 620

New Reduced Halides of Rare Earth Metals with Condensed Clusters: TbeBr? and Erel? (In German) K . BERROTH, H . MATTAUSCH, a n d A . SIMON 626

Products of the Reaction of Pentacarbonyl Iron with N-Substituted Imidazoles (In German) F . S E E L , R . LEHNERT, E . BILL, a n d A . TRAUT-WEIN 6 3 1

NMR Studies on Organoelement(IVb)-phosphines VI. " N i NMR Spectroscopic Investigations on Organoelement(IVb) Substituted Complexes of Tetracarbonylnickel (In German) H . SCHUMANN, M . MEISSNER, a n d H . - J . K R O T H

639 Chlorine Isotope Separation Using an Hydrous

Zirconium Dioxide Exchanger (In German) K . G . HEUMANN, K . B A I E R , a n d G . WIBMER 642

Selective Bulk-Hydrogenation of a,ß Unsaturated Ketones to Ketones with Homogeneous Ir and Ru Catalysts (In German) W . STROHMEIER, M . MICHEL, a n d L . W E I G E L T 648

C o n t e n t s of N u m b e r 6

Original Communications Preparation and X-ray Investigations of Cesium

Silver Gold(III) Chloride (In German) H . J . BERTHOLD a n d W . LUDWIG 6 5 1

On the Bis(chlorosulfur)nitrogen Cation N(SC1)2+

(In German) 0 . GLEMSER, E . K I N D L E R , B . K R E B S , R . M E W S , F . - M . SCHNEPEL, a n d J . W E G E N E R 6 5 7

Dicarbonyl-, Carbamoyl-carbonyl- and Carbo-methoxo-carbonyl Complexes of Rhodium with Tri- and Tetratertiary Phosphine Ligands (In German) H . BEHRENS, J . ELLERMANN, a n d E . F . HOHEN-BERGER 6 6 1

Oxovanadates with Mixed Valence, I. A New Crystal Structure of BaVioOis (In German)

D . C H . DE BEAULIEU a n d H K . MÜLLER-BUSCH-BAUM 669

On Ba2ZnGe2S60. A New Oxide Sulfide with Tetra-hedral Framework Structure (In German) CHR. L . TESKE 672

Electronic and Resonance Raman Spectra of Some New Mixed-Valence Compounds of Pt and Pd with a Metal-Halide Chain G . C . PAPAVASSILIOU a n d D . L A Y E K 676

TransitionMetal Methylene Complexes, X. Methylene and Alkyl Iron Complexes from Diazoalkanes. Molecular Structure of fjL-Carbonyl-[j.-£er<-butoxy-carbonyl-methylene-bis[carbonyl(^5-cyclopenta-dienyl)iron] (Fe-Fe) (In German) W . A . HERRMANN, J . P L A N K , I . BERNAL, a n d M . CRESWICK 680

Synthesis and Reactivity of ^-Indenyl-trimethyl-phosphanerhodium(I) and -rhodium(III) Com-plexes (In German) H . W E R N E R a n d R . F E S E R 689

Perfluoromethyl Element Ligands, X X I I I . Prepara-tion and Spectroscopic Investigation of M O ( C 0 ) 5 L Complexes (L = R 2 EER 2 ' , R 2 EE'R; R, R ' = CH3, CF3; E = P, A S ; E ' = S, Se, Te) (In German) J . G R O B E a n d D u e L E V A N 694

119Sn NMR Shifts and Coordination Shifts of Halogenostannylene Complexes (In German) W . - W . DU MONT a n d H . - J . K R O T H 700

On the Structure of Ternary Arsenides (In German) M . PFISTERER a n d G . NAGORSEN 703

On the Influence of the pH Value on the Polaro-graphie Reduction of the Nitrophenols in Presence and Absence of Campher (In German) D . JANNAKOUDAKIS a n d E . THEODORIDOU 705

Reaction of BiCl3 with N,N'-Bis(trimethylsilyl)urea, and Acetone (In German) A . GEORGIADES, G . SCHILLING, a n d H . P . LATSCHA

709 Reinvestigation of the Behaviour of Benzal-anils

towards the Action of Potassium Cyanide I . 1 . A B D E L G A W A D , A B D EL-HAMMID HARHASH, a n d M . M . M . A B O U E L - Z A H A B 7 1 2

The Metal Chelates of Heterocyclic /9-Diketones and their Derivatives, Part IV. New Mixed Ligand Tetrakis Complexes of Lanthanides Derived from tris-Acetylacetonates and Some 4-Acyl Pyrazo-lones E . C H . OKAFOR 7 1 5

Transition Metal Complexes of Diazenes, X V . Synthesis and Properties of Heterodimetal Com-plexes LnM-(as-RN=NR)-M'LOT

(In German) R . BATTAGLIA, H . K I S C H , C . K R Ü G E R , a n d L . - K . L I U 719

\

Contents I X

Reductones of Tetramic, Tetronic and Thiotetronic Acids (In German) H . - D . STACHEL, H . POSCHENRIEDER, a n d H . BURGHARD 7 2 4

Nonenzymatie Catalysis by Metal Ions and Phos-phoric Acid Esters of Hydroxamic Acid Forma-tion O E . SAYGIN a n d P . D E C K E R 7 2 7

Singlet Oxygen Production Photosensitized by Fluorescein in Reversed Micellar Solutions N . MIYOSHI a n d G . TOMITA 7 3 1

Buffer Action of Reversed Micelles N . MIYOSHI a n d G . TOMITA 7 3 6

Solubilization of Methylene Blue in Reversed Micelles, Effect of Water N . MIYOSHI a n d G . TOMITA 7 4 1

Pyrroloquinolines, Part III. Synthesis of 1H-Pyrrolo(2,3-b)quinolines M . MURUGESAN, K . R A M A S A M Y , a n d P . SHAN-MUGAM 7 4 6

Synthesis of2,2-Dihydro-l,4,2-diazaphosphol-4-enes (In German) K . BURGER, S . PENNINGER, a n d S . TREMMEL 7 4 9

The Chemistry of Heteroarylphosphorus Com-pounds, Part 14. Effects of Heteroaryl Substi-tuents at Phosphorus on the Steric Course of Wittig Reactions of Semistabilised and Stabilised Ylides D . W . A L L E N a n d H . W A R D 7 5 4

Quantitative Evaluation of the Reactivity of Alkylating Agents N . BODOR, J . J . K A M I N S K I , S . D . W O R L E Y , a n d ST. H . GERSON 7 5 8

Furanoid Diterpenes in the Bitter Fraction of Teucrium chamaedrys L. G . Y . PAPANOV a n d P . Y . M A L A K O V 7 6 4

Study on Trimethylsiloxyalkanols R . K . K A N J O L I A a n d V . D . G U P T A 767

Notes On two Lead Antimony Phosphates with Eulytine

Structure: Pb3Sb in(P04)3 and PbiiSbv(P04)9

(In German) G . E N G E L a n d J . BELGARDT 7 7 1

Preparation and Structure of Bis(dimethylgallium)-N,N'-dimethyldithiooxamide (In German) T . H A L D E R , H . - D . H A U S E N , a n d J . W E I D L E I N 7 7 3

Crystal Structure of BaTiS3 (In German) J . HUSTER 7 7 5

Preparation, IR Spectrum and Crystallographic Data of [ReNCls • P0C13]4 • 2 P0C13

(In German) W . L I E S E , K . DEHNICKE, I . W A L K E R , a n d J . STRÄHLE 7 7 6

Ternary Sodium Phases with Cadmium or Mercury and Tin or Lead (In German) R . MATTIIES a n d H . - U . SCHUSTER 7 7 8

On the Role of the Electronic Bulk Properties of Semiconducting Minerals in their Interaction with Electrolytes 0 . A . K U N Z E 7 8 1

Cyclophosphazenes as Novel Antitumour Agents: Geometry of the Hexaziridinocyclotriphospha-zene, N3P3AZ6, from an X-ray Investigation of the Benzene Clathrate T . ST. CAMERON, CHR. CHAN, J . - F . L A B A R R E , a n d M . GRAFFEUIL 7 8 4

Regiospecific Synthesis of l,2-Dialkylthio-7(alkyl-or aryl)thiocycloheptatrienes and 1,2-Dialkylthio-7-alkoxycycloheptatrienes M . CAVAZZA, G . MORGANTI, a n d F . P I E T R A 7 8 6

C o n t e n t s of N u m b e r 7

Original Communications Crystal Structure of Dodecamethyl-hexasila-tetra-

arsa-adamantane (Sime2)6As4 (In German) W . HÖNLE a n d H . G . VON SCHNERING 7 8 9

X-ray Structural Analysis and Vibrational Spectra of Trisulfurdinitrogendioxide, SaNaOx (In German) R . STEUDEL, J . STEIDEL, a n d N . R A U T E N B E R G

792 Preparation and Characterization of the Tetrabutyl-

ammonium Salts of [ T C 2 C 1 8 ] 2 - , [ T C 2 C 1 8 ] 3 - and [Tc2Br8]2- (In German) W . PREETZ a n d G . PETERS 7 9 7

Preparation and Characterization of 1,4- and 1,5-Diene Complexes of Platinum; X-ray Analysis of Dichloro-2,5-diphenyl-l,5-hexadiene Platinum(II), ((Cl2Pt(C6H5)2C6H8) (In German) M . K O P P , L . R . K R A U T H , R . R A T K A , K . W E I D E N -HAMMER, a n d M . L . ZIEGLER 802

Hydrates of Manganese and Zinc Sulfite. X-ray, Thermoanalytical, Raman and IR Data (In German) H . D . LUTZ, S . M . E L - S U R A D I , CH. MERTINS, a n d B . ENGELEN 808

Synthesis and Reactions of Oxovanadium (V) Tri-carboxylates (In German) F . PREUSS, W . T O W A E , a n d J . WOITSCHACH 8 1 7

Europium (II )Heptaphosphide EuP? (In German) H . G . v . SCHNERING a n d M . WITTMANN 824

Polydentate Ligands Containing Phosphorus, III. Synthesis and Nuclear Magnetic Resonance Studies of Some Unsymmetrical Potentially Tri-dentate Phosphine Chalcogenide Ligands S . 0 . GRIM, L . C . S A T E K , a n d J . D . MITCHELL 832

X Contents

Methylene Compounds of Non-Metals, III. Metal Carbonyl Complexes of Methylene-Bridged Di-phosphorus Ligands (In German) M . F I L D , W . H A N D K E , a n d W . S . SHELDRICK 838

{r]-Cj clooctatetraene) (rj-cyclooctatrienyl )rho-dium(I) and Some Related Rhodium Complexes (In German) H . - O . STÜHLER 843

Surface Compounds of Transition Metals, XXIII . The Reaction of Cycloolefines with Surface Chro-mium(II) on Silicagel at Higher Temperature (In German) H . - L . K R A U S S a n d E . HUMS 848

S4N4 and its Derivatives: a-FeCL • S4N4, a Transi-tion Metal Complex with the S4N4 Ligand (In German) U . THEWALT 8 5 5

Preparation of Iron Tetracarbonyl Complexes with Thioacetamides as Ligands (In German) W . PETZ 860

Organometalphosphine - Substituted Transition Metal Complexes, X X V I I . Trinitrosyl(organo-metalphosphine)manganese Complexes (In German) H . SCHUMANN a n d M . MEISSNER 863

Contributions to the Chemistry of Silicon and Germanium, X X X I I . Isomerization of Higher Silanes with Aluminium Chloride (In German) F.FEH£R, F. OCKLENBURG, andD. SKRODZKI 869

Synthesis and Ligand Properties of an 1,2,5-Azadi-borolene Derivative (In German) W . SIEBERT, H . SCHMIDT, a n d R . F U L L 873

Tellurium in Organic Synthesis, IX. Oxidation of Some Nitrogenous Compounds with Te02

(In German) J . BERGMAN a n d L . ENGMAN 882

Alkaloids in Tabernaemontana Species, XII . Inves-tigation of the Alkaloids from Tabernaemontana olivacea - Condylocarpine-N-oxide, a New Alka-loid from T. olivacea (In German) H . ACHENBACH a n d B . RAFFELSBERGER 885

Synthesis of Isocoumarines from Phenylmalonyl Heterocyclic Compounds (In German) W. STADLBAUER, N.GHOBRIAL, andTH. K A P P E 892

Investigations of Quaternary Pyridinium Salts, XI . Reactions of Cyanopyridinium Salts with Hydro-xylamine (In German) W . - H . G Ü N D E L 896

Nitrodiphenylethers, their Preparation and Herbi-cidal Activity (In German) H . SCHÖNOWSKY a n d H . BIERINGER 902

Dialkyl Resorcinols from Pseudomonas aureofaciens (In German) H . BUDZIKIEWICZ, H . SCHOLL, a n d W . N E U E N -HAUS 909

Total Synthesis of Somatostatin-28 (Big Somato-statin) (In German) E . WÜNSCH, L . MORODER, M . GEMEINER, E . JAEGER, A . R I B E T , L . P R A D A Y R O L , a n d N . V A Y S S E 9 1 1

A New Weak Base from Rauwolfia vomitoria Afzue-lia

A . MALIK, S . SIDDIQUI, a n d W . VOELTER 920

Notes Alkynyl Compounds of Transition Metals, X X X X I .

Planar Complexes of the Type *ra7is-[Pd(C=CC6H4C=CH)2(Pet3)2] (In German) R . N A S T a n d A . B E Y E R 924

The Structure of [^-CaHsPdPtCeHs^ P . W . J O L L Y , C . K R Ü G E R , K . - P . SCHICK, a n d G . W I L K E 926

Ternary Molybdenum Sulfides of the Heavy Alkali Metals M . KÜMPERS a n d R . SCHÖLLHORN 929

(Hydroxyalkyl)- and (4-Hydroxyphenyl)-organo-plumbyl Sulfides (In German) C . - D . HAGER a n d F . H U B E R 9 3 1

The Transmission of Substituent-Induced 13C NMR Chemical Shifts in para-\Substituted 3-Phenyl Propanoic Acid Methyl Esters (In German) R . RADEGLIA, S . L . SPASSOY, R . STEFANOVA, a n d S . D . SIMOVA 934

The Behavior of Mono- and Diorganylphosphane Sulfides towards Metal Carbonyl Systems, X X I I I . Crystal and Molecular Structure of ^-[Oxybis-dimethylphosphane)]-bis[dicarbonyl(h5-cyclo-pentadienyl)-manganese(l)] (In German) E . LINDNER, S . HOEHNE, a n d J . - P . GUMZ 937

C o n t e n t s of N u m b e r 8

Original Communications

AB2X2 Compounds with the CaALSi2 Structure, VII. The Crystal Structure of SrZn2As2, SrCd2As2, and YbMnCuP2 (In German) A . MEWIS 939

Preparation and Crystal Structure of CaCu4P2

(In German) A . MEWIS 942

Mineralization of CCL and CCI2F2 on Solid Surfaces S . G A B , J . SCHMITZER, W . V . TURNER, a n d F . K O R T E 946

Rb6In2S6 and Rb4ln2S5, Two New Thioindates with Isolated and Connected [In2S6]8- Anions Respectively (In German) H . - J . DEISEROTH 9 5 3

Contents X I

(MePNMe)4S3, a Cyclotetra(A3,A5,A5,A5-phosphazane) (In German) W . ZEISS, W . SCHWARZ, a n d H . H E S S 9 5 9

Synthesis and Structure of Phosphazenylcyclo-phosphazenes (In German) D . DAHMANN, H . R O S E , a n d W . W A L Z 9 6 4

Thermal Decomposition of Nonstoichiometric Ce-sium-Silver-Gold(III)-Chloride and Preparation of Mixed Crystals of Cs2AgAuCl6 and C S 2 A U I A U I I I C 1 6 (In German) H . J . BERTHOLD a n d W . LUDWIG 9 7 0

Preparation and Spectroscopic Properties of Me3SiOP(S)Cl2, Me3SiOP(S)Br2 and Me3Si0P(0)Br2 (In German) A . - F . SHIHADA a n d R . MAJED 9 7 6

Reactions of Ferrocenyldiphenylphosphine. Effects of the Ferrocenyl Group at Phosphorus on the Course of Decomposition of Phosphonium Be-taines and Vinylphosphonium Salts D . W . ALLEN 9 8 1

Strong Organometallic Lewis Acids, III [1]. Reactions of Tricarbonyl-/;5-cyclopentadienyl Molybdenum Tetrafluoroborate with Cyclic Ethers (CH2)„0 (n = 2, 3, 4) and Dioxane (In German) K . SCHLOTER a n d W . B E C K 9 8 5

A Spiro-bicyclic Phosphorus Ylide and its Cor-responding Phosphonium Cation (In German) H . SCHMIDBAUR a n d A . MÖRTL 990

Geometric Isomerism of Bond Isomeric Hexakis(thiocyanatoisothiocyanato)osmates(III) (In German) G . PETERS a n d W . PREETZ 9 9 4

Reactions of Triphenylbismuthan with Aliphatic Dicarbonic Acids (In German) A . GEORGIADES a n d H . P . LATSCHA 1 0 0 0

Mesoionic 4njr-Heterocycles, I. Mesoionic 4n Five-Membered Heterocycles and 8 ^-Heteropentale-nes. Development of the Systems and Investiga-tions on the 1-Oxo-l H-pyrazolo[l,2-a]pyrazol-4-ium-3-olate Type (In German) W . FRIEDRICHSEN 1 0 0 2

Nonenzymatie Formation of Energy Rich Phos-phates in the Course of Imidazole Oxidation with Fenton's Reagent Ö . SAYGIN 1 0 0 9

Structure Determination of 3,5-Biscyclohexylidene-I,2,4-trithiolane (In German) W . WINTER, H . B Ü H L , a n d H . MEIER 1 0 1 5

Structures of l-Phenyl-3-methyl-pyrazolone-5 and its Benzoyl Derivatives E . CH. OKAFOR 1 0 1 9

Electrophilic Substitution of Aromatic Compounds by Unsaturated Sugar Derivatives G . GRYNKIEWICZ a n d A . ZAMOJSKI 1 0 2 4

The Electronic Structure and the He(I). Photoelec-tron Spectrum of Tricarbonylcyclooctatetraene-iron M . C . BÖHM a n d R . GLEITER 1 0 2 8

MNDO Calculations on the Unimolecular CO Loss from Isomeric C3H5CO+ Ions (In German) G . FRENKING, J . SCHMIDT, a n d H . SCHWARZ 1 0 3 1

Reaction of Dihydroxymethyl Radical with Mole-cular Oxygen in Aqueous Solution E . BOTHE a n d D . SCHULTE-FROHLINDE 1 0 3 5

Kinetic Analysis for the Conversion of Oxirenes or Thiirenes and their Open-Chain Valence Isomers (In German) H . MEIER a n d H . KOLSHORN 1 0 4 0

Some Extensions of von Braun (BrCN) Reaction on Organic Bases S. SIDDIQUI a n d B . S . SIDDIQUI 1049

Notes An Electronegativity Scale for RS02 Groups as

Empirically Estimated from the S-Cl Bond Lengths of Sulphonyl Chloride Molecules I . HARGITTAI a n d C. BLIEFERT 1 0 5 3

Na2AuAs, Na2AuSb, K2AuSb - Three New A2BX Compounds with a B-X Chain Structure (In German) C. M U E S a n d H . - U . SCHUSRER 1 0 5 5

C o n t e n t s of N u m b e r 9

Original Communications Mesylhydroxylamines, III. The Reaction of Methane

Sulfonyl Fluoride and Hydroxylamine (In German) K . B R I N K a n d C . BLIEFERT 1 0 5 9

Vibrational Spectra of the Cage Compounds P4S3, P4Se3, As4S3 and As4Se3 (In German) W . B U E S , M . SOMER, a n d W . BROCKNER 1063

Tetrazido-nitrido-molybdate (VI); Preparation, IR Spectrum and Crystal Structure of AsPh4[MoN(N3)4] (In German) K . DEHNICKE, J . SCHMITTE, a n d D . F E N S K E 1 0 7 0

Structure and Coordination Chemistry of Phosphino Derivatives of 5-Methoxy-2(5 H)-furanon (In German) D . F E N S K E , H . PROKSCHA, P . STOCK, a n d H . J . BECHER 1 0 7 5

Transition Metal Carbyne Complexes, L X . Novel Triphenylsilyl Carbene Complexes of Rhenium by Reaction of a Cationic Carbyne Complex with Nucleophiles (In German) E . 0 . FISCHER, P . RUSTEMEYER, a n d D . NEUGE-BAUER 1083

X I I Contents

Chemical Behaviour of the Silicon Oxide Fluoride F3SiOSiF3 (In German) E . JACOB 1088

Inert Ammine Complexes as Multivalent Cationic Acids in Aqueous Solution (In German) M . KRETSCHMER, L . LABOUVTE, K . - W . QUIRIN, H . W I E H N , a n d L . H E C K 1 0 9 6

Preparation and Properties of, and Reactions with, Metal-Containing Heterocycles, VII. Hetero-lytic Cleavage of the Re-Re Bond in the Bi-nuclear Anions [(0C)4ReP(R2)0]22- with Electro-philes - a Pathway to Heterocycles with Re-C a Bonds (In German) E . LINDNER a n d G VON A U 1 1 0 4

Synthesis and Properties of a New Kind of One-Dimensional Conductors. Poly-trans(alkynyl)-phthalocyaninatosilicon (IV) (In German) K . MITULLA a n d M . H A N A C K 1 1 1 1

Synthesis and Properties of New Chloro Tris-(carbonylmetalato) Tin(IV) Complexes and the X-ray Structure Analysis of ClSn[Fe(CO)2Cp]2[Co(CO)4] (In German) M . MOLL, H . BEHRENS, P . MERBACH, K . GÖRTING, G . LIEHR, a n d R . BÖHME 1 1 1 5

C-N, Si-N and P - N Bond Cleavage in Reactions of Phosphorus Pentafluoride with a Fluorophosphine and a Fluorophosphorane, Containing the N-Trimethylsilyl-N-ter£-butyl Group (In German) G . - V . RÖSCHENTHALER, W . STORZER, a n d R . SCHMUTZLER 1 1 2 5

Synthesis of Four- and Eight-Membered Hetero-cycles Containing Sulfur, Nitrogen and Phos-phorus and the X-ray Structure of a Phosphorus-Containing Eight-Membered SN-Ring (In German) H . W . R O E S K Y , S . K . MEHROTRA, CH. P L A T T E ,

D . AMERZADEH-ASL, a n d B . ROTH 1 1 3 0 The Force Field of SF4 (In German)

W . SAWODNY, K . B I R K , G . FOGARASI, a n d K . 0 . CHRISTE 1 1 3 7

New Methods for the Preparation of Chlorine Nitrate C10N02

M . SCHMEISSER, W . ECKERMANN, K . P . GUND-LACH, a n d D . NAUMANN 1 1 4 3

Synthesis and Crystal Structure of a Triazido Nitrido Bipyridyle Complex of Molybdenum(VI): MoN(N3)3(bipy) (In German) E . SCHWEDA a n d J . STRÄHLE 1 1 4 6

Preparation and Properties of (Trifluoro)acetyl-phosphole (In German) E . LINDNER a n d G . F R E Y 1 1 5 0

Aminofluorosilanes: 1,3-Migration of Silyl Groups and Si-N-Rotational Barrier (In German) U . KLINGEBIEL a n d J . NEEMANN 1 1 5 5

The Crystal Structures of U 2 C U 3 A 1 and U C U A 1 2 , and their Relationship with Some Other Phases in the System U-Cu-Al 1 . B L A Z I N A a n d Z . B A N 1 1 6 2

The Structure of Thiodithiazyl Derivatives. An Example of an Electron-Rich-Four-Center-Bond R . G L E I T E R , R . BARTETZKO, a n d P . H o F M A N N 1 1 6 6

Isolation and Partial Characterization of Adipo-tropin, an Apparent New Lipolytic Peptide from Bovine Anterior Pituitary Lobes K . O ' M A L L E Y a n d K . FOLKERS 1 1 7 1

C o n t e n t s of N u m b e r 10

Original Communications Sulfur Oxidation of Amino Substituted Cyclotri-

(A3-phosphazanes) (In German) W . Z E I S S a n d H . K L E H R 1 1 7 9

NMR Spectroscopic Investigations on i-Butyl-phenyl-phosphinic Acid(—)-Menthyl Ester, II. m , 13C and 31P NMR Analysis of Absolute Con-figuration at the Phosphorus Center (In German) G . H Ä G E L E , D . WENDISCH, R . LUCKENBACH, a n d H . - H . BECHTOLSHEIMER 1 1 8 2

Crystal Structure of Hexakis(thiazylfluoride)nickel-(II) Hexafluoroarsenate (In German) G . HARTMANN, P . G . JONES, R . M E W S , a n d G . M . SHELDRICK 1 1 9 1

Reactions of 2,6,15,19-Tetrathia[7,7 Jparacyclophane with Heavy Metal Salts (In German) A . R . K O R A Y a n d M . L . ZIEGLER 1 1 9 3

Synthesis of "Nitrene Complexes" via Acid Azides and Azido Acid Esters (In German) R . KORSWAGEN a n d M . L . ZIEGLER 1 1 9 6

Some Observation on Nickel(IV) Periodate M . CHAUDHURY, A . R O Y , B . P . GHOSH, a n d K . N A G 1201

Dodecamethyl Bisimidotriphosphoramide (TRIPA), Part III. The Crystal and Molecular Structure of T R I P A • H20 J . C . P . M . LAPIDAIRE a n d A . J . D E K O K 1 2 0 3

Transition Metal Substituted Phosphanes, Arsanes and Stibanes, X X I V . Functional Arsane Ligands via Reaction of Transition Metal-Dimethylarsine-sulfides with Acetylhalide (In German) R . J A N T A a n d W . MALISCH 1207

Contributions to the Chemistry of Boron, 112. 1,3,2-Dithiaboroles (In German) R . GOETZE a n d H . N Ö T H 1 2 1 2

Four- and Fivemembered Phosphorus Heterocycles, L. Tautomerism and Substitution at 5-Dimethyl-amino-l,2,4,323-triazaphosphole (In German) A . SCHMIDPETER a n d H . TAUTZ 1 2 2 2

Contents MDLXIII

Application of U B NMR Spectroscopy to the Study of Hydroboration, I. Hydroboration of 3-Methyl-1,3-butadiene with Borane in Tetrahydrofurane and Dimethyl Sulfide (In German) R . CONTRERAS a n d B . W R A C K M E Y E R 1 2 2 9

Application of n B NMR Spectroscopy to the Study of Hydroboration, II. Hydroboration of 1,5-Cyclooctadiene with Borane in Tetrahydrofurane (In German) R . CONTRERAS a n d B . W R A C K M E Y E R 1 2 3 6

Compounds of Complex Halo and Pseudohalo Acids of the Group II B Metals, Part II. Etherate and Aniline Compounds of Cd(II) S . P . PERLEPES, T H . F . ZAFIROPOULOS, J . K . KOUINIS, a n d A . G . GALINOS 1 2 4 1

Compounds of Complex Halo and Pseudohalo Acids of the Group II B Metals, Part III. Spectral Studies of the Hgl3~ Ion S . P . PERLEPES, T H . F . ZAFIROPOULOS, J . K . KOUINIS, a n d A . G . GALINOS 1 2 4 4

Structural Isomers of Copper(I) Iodide Pyridine and their Luminescence Properties. Synthesis and Crystal Structure of a New Modification of Cul • NC5H5 (In German) E . E I T E L , D . OELKRUG, W . H I L L E R , a n d J . STRÄHLE 1 2 4 7

Bis(?y5-cyclopentadienyl)N,N-disubstituted Dithio-carbamato(chloro)oxomolybdenum (VI) Com-plexes H . S . SANGARI, G . S . SODHI, N . K . K A U S H I K , a n d R . P . SINGH 1 2 5 4

Distribution and Valence of the Cations in Spinel Systems with Iron and Vanadium, I. X-ray Investigation and Mössbauer Spectra of the Spinel System ZnV204-ZnFe2Ü4 (In German) E . R I E D E L , T . DÜTZMANN, a n d N . P F E I L 1 2 5 7

Distribution and Valence of the Cations in Spinel Systems with Iron and Vanadium, II. X-ray Investigation, Seebeck Coefficients, Mössbauer and IR Spectra of the Solid Solutions Fe2V04-ZnV204 and Fe2V04-ZnFe204 (In German) E . R I E D E L a n d N . P F E I L 1 2 6 1

Phase Relations in the System Ag-As-S and Thermal Behaviour of Ag7MX6 Compounds (In German) R . BLACHNIK a n d U . W I C K E L 1 2 6 8

Electronic and Resonance Raman Spectra of the Linear Chain Mixed Valence Compound Pt(NH3)2(SCN)2I R . J . H . CLARK, M . KURMOO, K . D . B U S E , a n d H . J . K E L L E R 1 2 7 2

Crystal and Molecular Structure of the Linear Chain Bis(l,2-diaminopropane)platinum(II,IV)-tribromide

H . ENDRES, H . J . K E L L E R , R . MARTIN, a n d S . NÖTZEL 1 2 7 4

Cationic Thionitrosyl Complexes of Chromium (In German) M . HERBERHOLD a n d L . HAUMAIER 1 2 7 7

The Binuclear Complexes Cp2Mn2(CO)4S2 and Cp2Mn2(CO)4Se2 (In German) M . HERBERHOLD, D . R E I N E R , B . ZIMMER-GASSER, a n d U . SCHUBERT 1 2 8 1

Gold Complexes of a P-Coordinate Cyclotriphos-phazene K . C . DASH, A . SCHMIDPETER, a n d H . SCHMID-BAUR 1 2 8 6

The Synthesis of Organometallic Ylides. Interaction of Methylenetriphenylphosphorane with Bis(^5-cyclopentadienyl) zirconium and -hafnium Dichlo-rides and the Molecular Structure of Bis(??5-Cyclopentadienyl)chlorozirconylmethylenetri-phenylphosphorane J . C . BALDWIN, N . L . K E D E R , CH. E . STROUSE, a n d W . C . K A S K A 1 2 8 9

Bis(^2-olefin)tetracarbonyltungsten and -molyb-denum Complexes: Photochemical Synthesis, Structure and Fluxional Behaviour (In German) F . - W . GREVELS, M . LINDEMANN, R . B E N N , R . GODDARD, a n d C . K R Ü G E R 1 2 9 8

Synthesis of Hexahydroindazole, Tetrahydro-[pyrimidoquinazolinone, benzodiisoxazolone] Derivatives and Anils from Diethyl 1,4-Cyclo-hexanedione-2,5-dicarboxylate E . - S . AFSAH, F . A . AMER, M . A . M E T W A L L Y , a n d M . T . E L - Z I M A I T Y 1 3 1 0

Synthesis of Some Pyrazolo [Diazepine, Pyrazole, Isoxazole and Pyrimidine] Derivatives and Related Compounds

E L - S . AFSAH, F . A . AMER, a n d M . SOAFAN 1 3 1 3

Notes AB2X2 Compounds with the CaAl2Si2 Structure,

VIII (In German) P . K L Ü F E R S , H . NEUMANN, A . MEWIS, a n d H . - U . SCHUSTER 1 3 1 7

The Crystal Structure of [Cu(H2NCH2CH2NH2)2(CuI4/2)2] (In German) B . FRECKMANN a n d K . - F . T E B B E 1 3 1 9

Preparation and Crystal Structure of PrLi2P2, PrLi2As2 and NdLi2As2 (In German) H . - O . FISCHER a n d H . - U . SCHUSTER 1 3 2 2

Cationic Rhenium-pentacarbonyl Complexes with Oxygen-0 Ligands (In German) M . OLTMANNS a n d R . MEWS 1 3 2 4

cis-ircms-Configuration of a-Azidochalkones D . K N I T T E L a n d G . W E B E R 1 3 2 6

X I V Contents

Short Time Pyrolysis, Part l l . A Simple Synthesis of Dibenzopyracylene G . SCHADEN 1 3 2 8

C o n t e n t s of N u m b e r 11

Original Communications New Organophosphorus Ligands: 2-Pyridyl-phos-

phanes, -phosphanemethylenes, and -phosphane-boranes (In German) H . SCHMIDBAUR a n d Y . INOGUCHI 1 3 2 9

On the Reaction of Trifluorophosphine (PF3), Di-fluoromethylphosphite (F2POCH3) and Tri-methylphosphite [P(OCH3)3] with Aquacobal-amin in Methanol (In German) R . BIEGANOWSKI a n d W . FRIEDRICH 1 3 3 5

Coloured Ternary and Quaternary Zintl-Phases (In German) U . E B E R Z , W . SEELENTAG, a n d H . - U . SCHUSTER

1341 Structure and Properties of the Potassiumhydrogen-

diarsenite-hemihydrate, KHAS2O4 • 1/2 H20 (In German) J . FUCHS a n d H . G U E V A R A 1 3 4 4

Spectroscopic Investigations in the Solid State Chemistry, XIII . Temperature Dependence of the 127I-Nuclear Quadrupole Coupling in NH4IO4 and other Periodates (In German) P . K . B U R K E R T 1 3 4 9

Preparation and Characterization of the Tetrabutyl-ammonium Salts of the Tetrahalooxotechnetates-(V), [TcOCL]- and [TcOBr4]" (In German) W . PREETZ a n d G . PETERS 1 3 5 5

Ring Contraction in the Cyclotrisilazane System -Synthesis and Molecular Structures of Silyl-Bridged Cyclodisilazanes (In German) W . CLEGG, M . H E S S E , U . KLINGEBIEL, G . M . SHELDRICK, a n d L . SKODA 1 3 5 9

On Two Modifications of "Tl2Cl3"-Mixed Valence Thallium (I) -hexahalogenothallates(III) (In German) R . BÖHME, J . R A T H , B . GRUNWALD, a n d G . THIELE 1 3 6 6

Preparation, Properties and Crystal Data of 6-Methyl-4-methylen-2-phenyl-4H-l,3,2-dioxa-phosphorin (In German) J . v . S E Y E R L a n d G . HUTTNER 1 3 7 3

Preparation of (Trimethylsilylmethyl)gallium Com-pounds (In German) K . - D . FUHRMANN a n d F . H U B E R 1 3 7 6

X-ray Structural Analyses of Two Allotropes of Cycloheptasulfur (y and <5-S?) R . STEUDEL, J . STEIDEL, J . PICKARDT, F . SCHU-STER, a n d R . REINHARDT 1 3 7 8

4(4-Alkyloxybenzoyloxy)-4'-cyanoazobenzenes: A Homologous Series of Liquid Crystals Exhibiting the Unusual Phase Sequence Smectic A - Nematic - Smectic A (In German) G . H E P P K E , R . HOPF, B . K O H N E , a n d K . P R A E F C K E 1 3 8 4

0,0-Diphenyl-N-chlorophosphoramidate (In German) K . DREWELIES, V . MÜNCH, J . J A N D E R a n d H . P . LATSCHA 1 3 8 9

Arsenic Bridged Dinuclear Mn(C0)4Br Complexes (In German) M . BÖRNER, R . M Ü L L E R , a n d H . V A H R E N K A M P 1 3 9 1

Synthesis of Some Diazepinones, Oxazepinones, Pyrimidoquinazolinones and Related Compounds from l,4-Bis(ethoxycarbonyl)-2,5-diamino-l,4-cyclohexadiene F . A . AMER, E . - S . AFSAH, M . A . M E T W A L L Y , a n d M . T . E L - Z I M A I T Y 1 3 9 5

Syntheses and Reactions of Enaminosulfonium Salts (In German) H . BRAUN, A . A M A N N , R . B A R N E R T , a n d J . F I R L 1 3 9 8

Dynamic Behaviour, Conformation and Bonding of Enaminosulfonium Salts (In German) J . FIRL, H . B R A U N , A . AMANN, a n d R . BARNERT

1406 Salts of Ferricinium Cation and its Homologues:

NMR Investigation, II. EPR and NMR Spectra of sym-Polymethyl Substituted Ferricinium Cations R . B . MATERIKOVA, V . N . BABIN, S . P . SOLODOV-NIKOV, I . R . L Y A T I F O V , P . V . P E T R O V S K Y , a n d E . I . FEDIN 1 4 1 5

Synthesis of S-Substituted Benzils and Some Hindered Biphenyls (In German) R . LÜDERSDORF, J . M A I , a n d K . P R A E F C K E 1 4 2 0

Competition between [3+2] Cycloaddition and 1,3-Addition Reactions. Trapping Reactions of Nitrile Ylides with 1,1-Diphenylethylene (In German) K . BURGER, H . GOTH, a n d W . - D . R O T H 1 4 2 6

Investigations of Quaternary Pyridinium Salts, XIII . Reaction of Carboxamides with Pseudo-bases from Pyridine Derivatives (In German) W . - H . GÜNDEL 1 4 3 1

Studies on Vitamin Bi2 and Related Compounds, 51. Direct Syntheses of Alkylcobalamins from Alka-nes and Vitamin Bi2r under "Oxidizing-Reducing" Conditions A . MAIHUB, H . B I X U , a n d G . N . SCHRAUZER 1 4 3 5

The Chemical Evolution of a Nitrogenase Model, X I X . Simulation of the Enzymatic Reduction of Cyclopropene G . N . SCHRAUZER, L . A . HUGHES, M . R . PALMER, N . STRAMPACH, a n d J . W . GRATE 1 4 3 9

Contents X V

Solubilization and Photoreaction of Thiazine Dyes in Reversed Micelles N . MIYOSHI a n d G . TOMITA 1 4 4 4

l,2-Dimethoxy-4-isopropoxy-5-vinylbenzene, an In-sect anti- Juvenile Hormone Lacking the Chromene Ring G . MATOLCSY, Y . M . DARWISH, I . B £ L A I , L . V A R J A S , a n d A . I . F A R A G 1 4 4 9

Synthesis of eis- and fraws-4-Cyanocyclohexanol (In German) a K . P R A E F C K E a n d D . SCHMIDT 1 4 5 1

A Comparison of the Effects of Steric Crowding at Phosphorus on the Steric Course of Wittig Reactions of Stabilised and Semistabilised Ylides D . W . A L L E N 1 4 5 5

Investigations on Naturally Occuring y- and <5-Lactones, X. Synthesis of Umuravumbolide and Epiumuravumbolide (In German) H . ACHENBACH a n d J . W I T Z K E 1 4 5 9

Alkaloids in Tabernaemontana-Species, XIII . Ibo-phyllidine and Ibophyllidine-Nb-oxide, Alkaloids in Tabernaemontana fiavicans (In German) H . ACHENBACH a n d B . RAFFELSBERGER 1 4 6 5

Structure-Activity Relationships of Polyfunctional Diterpenes of the Tigliane Type, IV. Deriva-tives of Tigliane without or with Opened Cyclo-propane Ring and their Irritant and Promoting Activity (In German) B . SORG, M . GSCHWENDT, H . W . TIIIELMANN, a n d E . H E C K E R 1 4 7 0

Solid Phase Synthesis of Thymopoietin- (32-36) Using Adpoc Amino Acids and its Biological Activity G . R A M P O L D , E . L U N D A N E S , K . F O L K E R S , W . VOELTER, H . K A H L B A C H E R , a n d E . BLIZNAKOV

1 4 7 6

Notes The Conformations of Oxacyclooctanes

U . B U R K E R T 1 4 7 9 Preparation and Crystal Structure of NaAu3Si and

NaAu3Ge (In German) W . DÖRING a n d H . - U . SCHUSTER 1 4 8 2

A New Cycloaddition of a Benzocyclobutadiene with Dienophiles (In German) H . STRAUB a n d B . MILLER 1484

1- and 2-Methylallyl Cations from Cation Radicals of Isomeric Vinyl Bromides (In German) H . SCHWARZ a n d CHR. WESDEMIOTIS 1486

Photoinduced Hydrogentransferreactions of Chlo-rinated Octahydro-l,4-endo, endo-5,8-dimethano-naphthaline (In German) H . PARLAR a n d F . K O R T E 1488

Optically Active Transition Metal Complexes, L X X . Preparation of the Optically Active Diastereo-

isomersC5H5Fe(CO)(CH2OCH3)P(C6H5)2N(CH3)R with Chiral Fe Atoms (In German) H . BRUNNER a n d J . - C . L E B L A N C 1 4 9 1

Mesylhydroxylamines, IV. Silylated N-Mesylhydro-xylamines (In German) G . POHLMANN, K . B R I N K , a n d C . BLIEFERT 1 4 9 4

Polarographic Behaviour of Some Steroidal Olefins M . W I L K a n d K . SCHMITT 1 4 9 6

Isolation of a New Natural Quinone, 2-Hydroxy-6-methoxy-3,5-dimethyl-l,4-benzoquinone, from the Potato Culture Solution of Phoma wasabiae Yokogi 0 . SOGA a n d H . IWAMOTO 1 4 9 7

C o n t e n t s of N u m b e r 12

Original Communications Molecular and Crystal Structure of 1,5-Dichloro-

3,7-bis(trifluoromethyl)-4,8-bis(2',6'-dimethyl-phenyl)-2,6,9-trioxa-4,8-diaza-l,5-diborabicyclo-[3,3,1]nonadiene (In German) W . CLEGG, M . NOLTEMEYER, G . M . SHELDRICK, W . MARINGGELE, a n d A . MELLER 1 4 9 9

Reactions of the Cyclotrisilazane System - Synthesis and Molecular Structure of a 1,3,5,7-Tetraaza-2,4,6,8-tetrasilabicyclo[4,2,0]octane (In German) W . CLEGG, U . KLINGEBIEL, G . M . SHELDRICK, L . SKODA, a n d N . V A T E R 1 5 0 3

Platinum Blues - a Study of the Interaction be-tween Potassium Tetrachloroplatinate and Aspar-agine P H . ARRIZABALAGA, P . CASTAN, a n d J . - P . LAURENT 1508

The Crystal Structure of NH4CUS4 (In German) CH. BURSCHKA 1 5 1 1

Chemistry of Polyfunctional Ligands, 60. On Cage Compounds with the Heteroelements Arsenic and Selenium (In German) J . ELLERMANN a n d M . LIETZ 1 5 1 4

Preparation and Crystal Structure of Ca4Sb20 (In German) B . EISENMANN, H . LIMARTHA, H . SCHÄFER, a n d H . A . G R A F 1 5 1 8

A New Synthesis and the IR Spectrum of Osmium-pentachloride (In German) K . DEHNICKE a n d R . LÖSSBERG 1 5 2 5

Triazido-trichloro-cyclotriphosphazene (NPC1N3)3

and a New Synthesis for [C13PNPC13]C1 (In German) U . MÜLLER a n d F . SCHMOCK 1 5 2 9

Crystal £*nd Molecular Structure of 1,11-Bis-(tropolone)-3,6,9-trioxaundecane • R b l K . K . CHACKO a n d W . SAENGER 1 5 3 3

X V I Contents

Dependence of Chlorine Isotope Separation in Ion Exchange Chromatography on the Nature and Concentration of the Eluent K . G . HEUMANN a n d K . BALER 1 5 3 8

29Si NMR Measurements on Polysilanes. 2. Isotetra-silanes (In German) H . C. MARSMANN, W . R A M L , a n d E . HENGGE 1 5 4 1

The Crystal Structure of the 1:1 Complex of Antimony Trichloride and 2,2'-Bipyridine (In German) A . LEPRA a n d H . WUNDERLICH 1 5 4 8

Acetylacetone as a Diene Diol Ligand in 6-Methyl-4-methylen-2-phenyl-4 H-1,3,2-dioxa-arsorine Transition Metal Complexes (In German) J . v . S E Y E R L , G . HUTTNER, a n d K . K R Ü G E R 1 5 5 2

Synthesis and Physico-Chemical Properties of Alcoholato Cobalt(II) Chlorides J . V . SINGH, N . C . J A I N , a n d R . C . MEHROTRA 1 5 5 5

Derivatives of CTS-NPC12(NSOC1)2 and (NPCl2)2NSOCl, Part X V . Methyl- and Ethyl-amino Derivatives of (NPCl2)2NSOPh C . CNOSSEN-VOSWIJK, J . C . VAN DE GRAMPEL, a n d C . K R U K 1 5 5 9

Studies on Unstabilized jr-Sulfuranes: Synthesis of trans-1,2-Disubstituted Epoxides R . S . T E W A R I , A . K . AWASTHI, a n d S . C . CHATUR-VEDI 1 5 6 5

8-Hydroxy-4-methoxymonothioquinaldic Acid - a Further Thioacid from Pseudomonas (In German) W . NEUENHAUS, H . BUDZIKIEWICZ, H . KORTH, a n d G . PULVERER 1 5 6 9

High Resolution 13C NMR Spectroscopy, VI. Structure Dependence of the 13C,H Coupling Constants in 6,6-Disubstituted Fulvenes (In German) S . B R A U N a n d U . EICHENAUER 1 5 7 2

Synthesis of 3/?- Acetoxy-7a-aza-B-homo-22a-spirost-5(6)-en-7-one A . K . SINGH a n d D . N . D H A R 1 5 7 5

Steady State Radiolysis of Aqueous Aerated Solu-tions of 5,6-Dihydrothymine. Identification of the Major Degradation Products J . CADET 1 5 7 9

4,4,4-Trichloro-zl 2-l-butenyl-dichlorophosphate and -dichlorophosphite, two Reagents for the Syn-thesis of Oligonucleotides (In German) P . SEIDEL a n d I . U G I 1 5 8 4

Notes

Preparation and IR Spectrum of 0s04 • 2 SbCL (In German) K . DEHNICKE a n d R . LÖSSBERG 1 5 8 7

Nitrido Bromo Complexes of Tungsten(VI) (In German) P . RUSCHKE a n d K . DEHNICKE 1 5 8 9

Identification of a Doubly Bridging M0S42- Ligand between Fe-Centers by the Resonance Raman Effect and a Simple Preparation of [(C6H5)4P]2[Cl2FeS2MoS2FeCl2] (In German) A . MÜLLER, S . S A R K A R , A . - M . DOMMRÖSE, a n d R . FILGUEIRA 1 5 9 2

New Ternary Gamma-Brass Phases in the Systems Ca-M I B ( I I B ) -Hg (In German) M . PUSELJ a n d Z . B A N 1 5 9 4

E r r a t a in t h i s V o l u m e

To G. Thiele et al. (34b, 1512 (1979)) 406