✦ LIBER ✦

Observation of nitrogen-14, carbon-13 indirect spin-spin coupling in high-resolution 13C CPMAS spectra of solids

✍ Scribed by Klaus Eichele; Roderick E. Wasylishen

Book ID: 103963667
Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 424 KB
Volume: 1
Category: Article
ISSN: 0926-2040
DOI: 10.1016/0926-2040(92)90016-3

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✦ Synopsis

The 13C CP/MAS NMR spectrum of [(n-C3H7)4N][Cd(SCN)3], 1, indicates the presence of three non-equivalent thiocyanate ligands, in agreement with the results of a recent single-crystal X-ray diffraction study. Examination of the 13C MAS line shapes allows direct measurement of the indirect spin-spin coupling constants, 1J(14N, 13C) = 16 +/- 1 Hz and 2J(111/113Cd, 13C) = 75 +/- 5 Hz, for the unique N-bonded thiocyanate ligand. This is the first reported measurement of 1J(14N, 13C) and 2J(111/113Cd, 13C) in the solid state. Possible reasons for the failure to observe 1J(14N, 13C) values in previous high-resolution 13C CP/MAS NMR studies are summarized.

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