# Additive induced polymorphous behavior of a conformationally locked hexol

Mehta, Goverdhan and Sen, Saikat and Venkatesan, Kailasam (2007) Additive induced polymorphous behavior of a conformationally locked hexol. In: CrystEngComm, 9 (2). pp. 144-151.

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## Abstract

The influence of molecular additives on the crystal structure adopted by a $C_{2h}$ symmetric, conformationally locked hexol 2 forms the object of the present study. It has been observed that the polycyclitol 2 crystallizes in two polymorphic ($\alpha$ and $\beta$ forms) and one pseudopolymorphic (monohydrate) modification, depending on the presence and nature of the additive employed. Thus, with the sole exception of trimesic acid, which induces 2 to crystallize in the denser \beta form, the molecular additives screened in this study either failed to promote polymorphism in 2 or caused it to crystallize as a monohydrate. The putative role of trimesic acid in providing an alternate crystallization pathway to the polyol 2 has been discussed.

Item Type: Journal Article Copyright of this article belongs to Royal Society of Chemistry. Division of Chemical Sciences > Organic Chemistry 09 Aug 2007 03 Feb 2012 06:12 http://eprints.iisc.ernet.in/id/eprint/11669