✦ LIBER ✦

Are magic angle spinning spectra indifferent to sense of spinning?

✍ Scribed by S. C. Shekar

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 263 KB
Volume: 36
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199807)36:7<496::aid-omr286>3.0.co;2-m

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✦ Synopsis

The apparent imperviousness of routine magic angle spinning (MAS) spectra to sense of spinning (clockwise/negative or counterclockwise/positive) is examined. Theoretical arguments, supported by simulations, reveal that the MAS signal depends on the spinning sense. However, this dependence is masked when appropriate symmetry of distribution of molecular orientations is present. Similar results are also found to be valid for signal arising from a "total suppression of spinning sidebandsÏ (TOSS) scheme.

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