c nmr spectroscopy - Τμήμα Χημείας course 4 c-13 nmr.pdf13 c nmr spectroscopy. ch 3oh...
TRANSCRIPT
13C NMR spectroscopy
CH3OH
(CH3)2C=O
CH3-CHO
1.2.1Natural Abundance 13C Spectrum of Compound 1
1H decouplingC-H NOET1 relaxation
1.2.2Coupled Spectrum (Gated Decoupling)
Normal 13C
Inverse gated decouplingQuantitative spectrum
1.2.4Decoupled Spectrum: Proton Decoupling
H
H
2JCCH =5.4 Hz
3JCCCH=7.9 Hz
1.2.4Decoupled Spectrum: Proton and Phosphorus Decouplin g
3JCOOP
1JCH + 3JCOOP
1JCH + 2JCCH + 3JCOOP
1.2.5APT, DEPT, INEPT
1.331P
1.3.3Coupled Spectrum (P–P Coupling)