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Swift and Efficient Nuclear Spin Conversion of M
olecular Hydrogen Confined in Prussian Blue AnalogsY
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atsuda, R. O
htani, M. O
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ater-vapor Sensitive Spin-state Switching in an Iron(III) Com
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-(Ti IVCoII)x Fe
IIIO
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Bull. Chem
. Soc. Jpn. 2020,93, 20-25.
Ferromagnetically Coupled Hydroxo-bridged
Heptanuclear Ni(II) Wheel Cluster w
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S. K
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hem. Lett. 2020,49, 24-27.
OPEN AccessTrioxotriangulene: Air-and Therm
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orita,* T. Murata, A
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ada, Y. K
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Inorganic Chemistry Frontiers The international, high quality journal for interdisciplinary research between inorganic chemistry and related subjects
Editor-in-chiefSong Gao Peking University, China
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COMMUNICATIONDouglas W. Stephen et al. N-Heterocyclic carbene stabilized parent sulfenyl, selenenyl, and tellurenyl cations (XH+, X = S, Se, Te)
Volume 46Number 1014 March 2017Pages 3073-3412 Dalton
TransactionsAn international journal of inorganic chemistry
INORGANIC CHEMISTRYF R O N T I E R S
Volume 5 | Number 3 | Month 2018
rsc.li/frontiers-inorganic
306-0012
UNICATTIONONW. Steeppheen et al.
ocyclicc cararbene stabilized parent sulfenyl, selenenyl,renyl cattions (XH+, X = S, Se, Te)
S
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A01: Molecular asymmetryLeader: Mitsuhiko Shionoya (U-Tokyo)Creation of higher-order molecular functions based on quantitative design of asymmetric coordination sphere
A02: Assembly asymmetry
A03: Spatial asymmetry A04: Electron system asymmetry
Leader: Nobuo Kimizuka (Kyushu Univ.)Creation of asymmetric high-order structures based on self-assembly and their functions
Leader: Takashi Uemura (U-Tokyo)Creation of asymmetric functional nanospaces exhibiting high selectivity, anisotropy, and directivity
Leader: Toshiharu Teranishi (Kyoto Univ.)Creation of chiral material conversion field and chiral electronic properties based on the asymmetrically assembled structures
International Advisory Board
“Coordination Asymmetry”
Website: http://asymmetallic.jp/
Design of Asymmetric Coordination Sphere and Anisotropic Assembly for the Creation of Functional Molecules
One of the ultimate goals of chemistry is to control the absolute and relative configurations of elements and design the bonds between the elements freely. Controlling the absolute configuration and asymmetry of the metallic center is a key to open up science for new materials of metallic elements that account for approximately 80% of the periodic table. This area intends to create a new scientific principle “Coordination Asymmetry” by the development of methodologies to build asymmetry and chirality of structural and electronic states with metal complexes and coordination space obtained from assembled complexes and its nano-micro level assembly based on the molecular level control of the coordination sphere of metal complexes.
5354 | Chem. Commun., 2016, 52, 5354--5370 This journal is©The Royal Society of Chemistry 2016
Cite this:Chem. Commun., 2016,52, 5354
Recent emergence of photon upconversion basedon triplet energy migration in molecularassemblies
Nobuhiro Yanai*ab and Nobuo Kimizuka*a
An emerging field of triplet energy migration-based photon upconversion (TEM-UC) is reviewed. Highly
efficient photon upconversion has been realized in a wide range of chromophore assemblies, such as
non-solvent liquids, ionic liquids, amorphous solids, gels, supramolecular assemblies, molecular crystals,
and metal–organic frameworks (MOFs). The control over their assembly structures allows for unexpected
air-stability and maximum upconversion quantum yield at weak solar irradiance that has never been achieved
by the conventional molecular diffusion-based mechanism. The introduction of the ‘‘self-assembly’’ concept
offers a new perspective in photon upconversion research and triplet exciton science, which show promise
for numerous applications ranging from solar energy conversion to chemical biology.
IntroductionPhoton upconversion (UC) is a process that converts lowerenergy (longer wavelength) photons to higher energy (shorterwavelength) photons. It is technologically important for a variety
of applications ranging from energy to biology. This FeatureArticle sheds light on a recently emerged promising strategy,triplet energy migration-based photon upconversion (TEM-UC).We start with the brief statements of potential applications,then describe the basic idea and proof-of-concept examples ofTEM-UC, and finally conclude with state-of-the-art materialsdesigns and future directions.
The efficiency of renewable energy production using solarenergy can be enhanced by implementing the UC process. Solarcells suffer from the spectral mismatches between the solar emis-sion and the bandgaps, and overcoming the Shockley–Queisser
a Department of Chemistry and Biochemistry, Graduate School of Engineering,Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku,Fukuoka 819-0395, Japan. E-mail: [email protected],[email protected]
b PRESTO, JST, Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
Nobuhiro Yanai
Nobuhiro Yanai received his PhDdegree from Kyoto University in2011 with Prof. Susumu Kitagawaand Dr Takashi Uemura onpolymer properties in coordinationnanospaces. He was a postdoctoralresearch fellow with Prof. SteveGranick at the University of Illinoisat Urbana-Champaign, working onthe self-assembly of MOF colloids.In 2012, he became an assistantprofessor at Kyushu University,where he has been an associateprofessor since 2015. Since 2014,
he has also been a researcher of the PRESTO program in JST. Hiscurrent research interests are in materials chemistry for photonupconversion and new triplet science.
Nobuo Kimizuka
Nobuo Kimizuka received his PhDdegree in 1990 on the excitonicchromophore interactions inmolecular self-assemblies withProf. Toyoki Kunitake at KyushuUniversity. After working as apostdoc with Prof. HelmutRingsdorf at Mainz University,he was promoted to an associateprofessor in 1992 and to a fullprofessor in 2000. He was aprincipal investigator of JSTCREST (2007–2014) and iscurrently the director of Center for
Molecular Systems, Kyushu University (CMS). His work encompassesthe synthesis, structure, properties and functions of molecular self-assemblies and nanomaterials with recent focus on photon energyconversion, supramolecular ferroelectrics and soft-ionics.
Received 5th January 2016,Accepted 22nd February 2016
DOI: 10.1039/c6cc00089d
www.rsc.org/chemcomm
ChemComm
FEATURE ARTICLE
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View Article OnlineView Journal | View Issue
Theodore Agapie (USA), Eric V. Anslyn (USA), Guido Clever (Germany), Nicholas A. Kotov (USA), Paul Lusby (UK), Mark MacLachlan (Canada), Eric Meggers (Germany), Jens Müller (Germany), Jonathan Nitschke (UK), Eugen Stulz (UK), Quan-Ming Wang (China), Hai-Bo Yang (China)
Research Item A01: Development of Soft Crystals through molecular design & synthesis
Research Item A03: Development of Soft Crystals with superior physical properties & functions
Research Item A02: Development of Soft Crystals with novel structure & morphology
Control of Stimulus-response and Functionalization of Luminescent Smart Soft Crystals
Masako Kato Hokkaido University
Satoshi Takamizawa Yokohama City University
Yoshinori Yamanoi The University of Tokyo
Mechanistic Study and Development of Novel Functions of Soft Crystals with Molecular Domino Transformation
Hajime Ito Hokkaido University
Synthesis and Development of Chemiluminescent Soft Crystals for Spatiotemporal Control of the Stimulus-responsive Functions
Takashi Hirano The University of Electro-Communications
Observation of Reaction Transient against External Fields in Soft Crystals using X-ray Molecular Movie
Ayana Sato-Tomita Jichi Medical University
Development of Crystal Potential of Metal Complex and Mechanism Analysis of Polymorphic Transition Phenomena
Hitoshi Goto Toyohashi University of Technology
Creation of helical biopolymer-integrated softcrystal and its application to photo-electronic devices
Norihisa Kobayashi Chiba University
Fabrication of Soft Photonic Crystals for Novel Functions
Jian Ping Gong Hokkaido University
Development of luminescence properties by the manipulation of interface in Soft Crystals
Miki Hasegawa Aoyama Gakuin University
Development of preparation technologies for metastable states of soft crystals and clarification of their phase-transition phenomena
Kazuyuki Ishii The University of Tokyo
Developments of Thermomechanical Properties of Soft Crystals
Development of stimulation-responsive soft crystal using the characteristics of silicon-silicon bond
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