Crystallographic study of push-pull ethylenes

Adhikesavalu, D and Kamath, Nirupa U and Venkatesan, K (1983) Crystallographic study of push-pull ethylenes. In: Proceedings of the Indian Academy of Science-Chemical Sciences, 92 (4-5). pp. 449-456.

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Abstract

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 thednmr technique.

Item Type:	Journal Article
Publication:	Proceedings of the Indian Academy of Science-Chemical Sciences
Publisher:	Indian Academy Sciences
Additional Information:	Copyright of this article belongs to Indian Academy Sciences.
Keywords:	X-ray structure analysis;push-pull ethylenes;C--C bond lengths;rotational barriers.
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	30 May 2009 06:42
Last Modified:	29 Feb 2012 06:56
URI:	http://eprints.iisc.ac.in/id/eprint/20132

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