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Configurational assignment of carbon, silicon and germanium containing propynal oximes by means of 13C1H, 13C13C and 15N1H spin–spin coupling constants

✍ Scribed by Kirill A. Chernyshev; Leonid B. Krivdin; Lyudmila I. Larina; Tatiana V. Konkova; Maria M. Demina; Alevtina S. Medvedeva

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
277 KB
Volume
45
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Configurational assignment of five carbon, silicon and germanium containing propynal oximes has been carried out by means of experimental measurements and high‐level ab initio calculations of their ^13^C^1^H, ^13^C^13^C and ^15^N^1^H spin–spin coupling constants. The title compounds were shown to exist in the nonequilibrium mixture of E and Z isomers with the energy difference of less than 0.3 kcal/mol calculated at the MP2/6‐311G** level. Copyright © 2007 John Wiley & Sons, Ltd.

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