ChemInform Abstract: ASSIGNMENT OF THE PROTON NMR SPECTRUM OF HEPTAMETHYL DICYANOCOBYRINATE IN CHLOROFORM SOLUTION BY TWO-DIMENSIONAL CARBON-13/PROTON CHEMICAL SHIFT CORRELATION SPECTROSCOPY

1985 ◽  
Vol 16 (4) ◽  
Author(s):  
L. ERNST
Keyword(s):  
Chemical Shift ◽  
Proton Nmr ◽  
Chloroform Solution ◽  
Correlation Spectroscopy ◽  
Proton Chemical Shift ◽  
Two Dimensional ◽  
Chemical Shift Correlation ◽  
Nmr Spectrum

Two-dimensional POMMIE carbon–proton chemical shift correlated 13C NMR spectrum editing

1990 ◽  
Vol 68 (7) ◽  
pp. 1145-1150 ◽  
Author(s):  
Bruce Coxon
Keyword(s):  
Chemical Shift ◽  
Pulse Sequences ◽  
Coupling Constants ◽  
Data Sets ◽  
Proton Chemical Shift ◽  
Two Dimensional ◽  
Chemical Shift Correlation ◽  
Linear Combinations ◽  
Nmr Spectrum ◽  
C Nmr

Two pulse sequences are described for acquisition of two-dimensional, carbon–proton chemical shift correlated 13C NMR spectra by the "phase oscillations to maximize editing technique". One of these sequences provides two-dimensional, carbon–proton chemical shift correlated spectra in which the 1H–1H coupling constants are present in the 1H chemical shift dimension, whereas the other sequence includes a bilinear rotation decoupling unit that removes the vicinal 1H–1H couplings in this dimension. Extensions of these techniques to generation of two-dimensional, carbon–proton chemical shift correlated CH, CH2, and CH313C NMR subspectra from linear combinations of three two-dimensional data sets are described. Decreased residual signals in the edited 2D subspectra have been achieved by Pascal programs that include six floating point coefficients, and a method for their calibration is discussed. Results are reported for troleandomycin (1). Keywords: 13C nuclear magnetic resonance, carbon–proton chemical shift correlation, DEPT, Pascal programs, POMMIE, two-dimensional NMR spectrum editing, troleandomycin.

Total assignment of the carbon-13 NMR spectrum of the cembranoid diterpene eunicin through the use of two-dimensional proton-carbon chemical shift correlation

1984 ◽  
Vol 106 (6) ◽  
pp. 1823-1826 ◽  
Author(s):  
Robert T. Gampe ◽  
Maktoob Alam ◽  
Alfred J. Weinheimer ◽  
Gary E. Martin ◽  
James A. Matson ◽  
...  
Keyword(s):  
Chemical Shift ◽  
Two Dimensional ◽  
Chemical Shift Correlation ◽  
Nmr Spectrum ◽  
Carbon Chemical Shift
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