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Studies in crystal engineering: structure�reactivity correlations of substituted styrylcoumarins and related systems

Moorthy, Narasimha J and Samant, SD and Venkatesan, K (1994) Studies in crystal engineering: structure�reactivity correlations of substituted styrylcoumarins and related systems. In: Perkin Transactions 2 (6). 1223-1228 .

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Abstract

The solid state photochemical behaviour of 7-hydroxy-4-styrylcoumarin 1 and several of its derivatives and analogues has been investigated. All the compounds with the exception of 7-methoxy-4-styrylcoumarin 2 are photolabile and yield anti-HT dimers. It has been observed that chloro substitution in the systems studied does not lead to the expected beta-packing mode. The photobehaviour of 1 and 2 has been correlated with their crystal structures. Reasons for alpha-packing have been examined. The systematics in the arrangement of the carbonyl group and phenyl group of the close neighbours in the crystals of 1, 2 and a few other cases are presented.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Royal society of chemistry.
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 13 Apr 2011 07:00
Last Modified: 13 Apr 2011 07:00
URI: http://eprints.iisc.ernet.in/id/eprint/36839

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