Crystallographic study of push-pull ethylenes

Adhikesavalu, D. ; Kamath, Nirupa U. ; Venkatesan, K. (1983) Crystallographic study of push-pull ethylenes Proceedings of the Indian Academy of Sciences - Chemical Sciences, 92 (4-5). pp. 449-456. ISSN 0377-8444

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From structural data of several crystal structure analyses of push-pull ethylenes it is found that C=C bond lengths in this class of molecules are significantly longer than the value for this bond in ethylene. With powerful donors and acceptors such as -NMe2 and -COOMe groups respectively, the C=C bond length is as long as 1.460 å. Correlations are observed between (i) C=C bond lengths and the twist angles about the C=C bond and (ii) C=C bond lengths and the torsional barrier measured by the DNMR technique.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:X-ray Structure Analysis; Push-pull Ethylenes; C=C Bond Lengths; Rotational Barriers
ID Code:66674
Deposited On:27 Oct 2011 04:06
Last Modified:04 Apr 2012 10:14

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