ISSN:
0749-1581
Keywords:
NMR
;
solid-state NMR
;
magic angle spinning
;
quadrupolar interactions
;
perturbation theory
;
bromine-carbon coupling
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Splittings in the 13C cross-polarization magic angle spinning spectra of 1, 4-dibromobenzene and 4-bromo-3, 5-dimethylpyrazole are reported. They arise from (79,81Br, 13C) interactions influenced by the quadrupolar nature of the bromine nuclei. They are analysed using both ‘inverse’ perturbation and exact theories to yield data on both isotropic and anisotropic coupling, including the signs. The spectra also enable the sign of the bromine quadrupole coupling constant to be confirmed as positive.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260330720
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