Heteronuclear correlation experiments for the determination of one-bond coupling constants.
1998
Spin-state selective experiments, HSQC-α/β and CT-HMQC-α/β, are proposed for the simple and rapid measurement of scalar one-bond coupling constants in two-dimensional,1 H-detected 15N-1H or13 C-1H correlation experiments based on HSQC and HMQC schemes. Pairs of subspectra are obtained, containing either the high-field or the low-field component of the doublet representing the one-bond coupling constant. The subspectral editing procedure retains the full sensitivity of HSQC and HMQC spectra recorded without heteronuclear decoupling during data acquisition, with a spectral resolution similar to that of decoupled spectra.
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