Fine structure of cross peaks in truncated COSY experiments
β Scribed by Lisa McIntyre; Xi-Li Wu; Ray Freeman
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 443 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
A method in which 1 H-1 H scalar and dipolar couplings are obtained from the cross-peak nulling condition in a series of constanttime (CT) COSY spectra, as a function of the duration of the CT period, is described. The method is best suited for measurement of 1 H-1 H couplings in the range 5-20 Hz.
The buildup curves in QUIET-BIRD-NOESY experiments, which are designed to isolate two-spin subsystems within macromolecules, are attenuated by transverse relaxation and evolution under homonuclear couplings during the bilinear rotation decoupling (BIRD) pulse sandwich. If the signals of both source
Two-dimensional pulse sequences for the determination of hetpeak patterns is also available in two-spin systems. No addieronuclear long-range coupling constants are presented. The setional passive spin is required. Purely absorptive phase in quences are based on the HMQC/HMBC or HSQC technique with