Abstract
Correlation of off-resonance-decoupled carbon-13 NMR spectra with spectra showing full heteronuclear couplings provides a method of assigning the various heteronuclear coupling constants on a particular carbon-13 nucleus to the corresponding protons. Indirect detection of the proton chemical shift can also be obtained from such correlations. Correlation is achieved by means of a two-dimensional time-resolved pulse experiment in which the 13C transverse magnetization evolves in two consecutive time domains without and with off-resonance decoupling. The 13C signal is detected in the second time domain.
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