✦ LIBER ✦

Efficient dipolar recoupling in the NMR of rotating solids. A sevenfold symmetric radiofrequency pulse sequence

✍ Scribed by Y.K Lee; N.D Kurur; M Helmle; O.G Johannessen; N.C Nielsen; M.H Levitt

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 469 KB
Volume: 242
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00741-l

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✦ Synopsis

A new radiofrequency pulse sequence is introduced for the efficient reintroduction of magnetic dipolar couplings in the magic-angle-spinning NMR of solids. The sequence involves seven phase-shifted radiofrequency pulse cycles, timed to span two rotational periods of the sample. Double-quantum coherences are excited with high efficiency in a rotating powder sample of zinc acetate-~3C2.