期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 32, 页码 8379-8382出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201404136
关键词
coupling constants; heteronuclear long-range correlation; HSQC; HSQMBC; pure in-phase NMR
资金
- MINECO of Spain [CTQ2012-32436]
A general NMR approach to provide pure in-phase (PIP) multiplets in heteronuclear correlation experiments is described. The implementation of a zero-quantum filter efficiently suppresses any unwanted anti-phase contributions that usually distort the multiplet pattern of cross-peaks and can hamper their analysis. The clean pattern obtained in PIP-HSQMBC experiments is suitable for a direct extraction of coupling constants in resolved signals, for a peak-fitting process from a reference signal, and for the application of the IPAP technique in non-resolved multiplets.
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