HIGHLY SELECTIVE 1D CH CORRELATIONS

Semi-selective 1D one-bond (1)J(CH) correlations with C-13 or H-1 detection and multiple-bond (n)J(CH) correlations with H-1 detection are described. In these methods INEPT is used for the polarization transfer and pulsed field gradient coherence transfer pathway selection. The pulse sequences are designed particularly with regard to solving efficiently sterochemical problems in organic molecules with minimum acquisition time. The methods also allow easy quantification of heteronuclear (n)J(CH) coupling constants.