ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A relatively fast rotation around the α,β carbon-carbon double bond at the equilibrium of geometrical isomers and a comparatively slow rotation around the carbon-nitrogen single bond in compounds of the type \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm X}_1 ({\rm X}_2){\rm C}_{\rm \alpha}=\!={\rm C}_\beta {\rm H}-{\rm C}_\gamma {\rm H}=\!={\rm C}_\delta {\rm H}-{\rm N}({\rm R}_1){\rm R}_2 $$\end{document} (X1, X2 are electron-attracting substituents) were detected and investigated by the NMR technique. The relationships between the free energies of activation for these rotational processes and the character of the substituents, the number of double bonds, solvents and concentration were studied.
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270060412
