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The effect of solvents on the 13C NMR chemical shifts of the carbonyl carbon and the rotational barriers of N,N-dimethylbenzamide

✍ Scribed by C. W. Fong; H. G. Grant

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
322 KB
Volume
14
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^13^C solvent induced chemical shifts (SICS) of the carbonyl carbon and the thermodynamic barriers to rotation about the CN bond of N,N‐dimethylbenzamide are linearly related to the solvent parameter, E~T~(30). A multi‐parametric solvent parameter approach indicates that the SICS are influenced equally by polar effects and hydrogen‐bond donor effects. Rotational barriers for N,N‐dimethylbenzamide may, in principle, be determined by measurement of the ^13^C chemical shift of the carbonyl carbon in a particular solvent.

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