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Measurement of long-range 29Si,13C spin–spin coupling at natural abundance

✍ Scribed by Vratislav Blechta; Jan Sýkora; Jan Schraml

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
153 KB
Volume
42
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Schemes for sensitive measurements of spin–spin coupling constants between rare nuclei with low magnetogyric ratios are considered and two combinations of INEPT with gradient versions of (X,Y)HMQC and (X,Y)COSY are suggested as particularly suitable for ^29^Si,^13^C couplings. It is demonstrated that the (H,Si)INEPT–(Si,C,Si)gHMQC combination (with ^29^Si detection) produces excellent results even though it is theoretically inferior to the (H,Si)INEPT–(Si,C)gCOSY combination (with ^13^C detection). Copyright © 2004 John Wiley & Sons, Ltd.

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