MOLECULAR AND CRYSTAL STRUCTURE OF ISOSTEVIOL SULPHITE
B. Dobrynin, O. V. Andreeva, I. A. Litvinov
Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center , Russian Academy of Sciences, Kazan, Russia
Keywords: isosteviol, sulphite, X-ray crystallographic analysis, hydrogen bond
Abstract
The molecular and crystal structure of isosteviol sulphite (1) is studied by means of the X-ray crystallographic analysis. It is demonstrated that this compound has a “dimer” structure, i.e. two isosteviol molecules are bound with a sulphite bridge. The molecule takes a tweezers-like conformation stabilized by intramolecular hydrogen bonds of acid groups. The molecules in the crystal are bound by intermolecular С-Н…О hydrogen bonds.
DOI: http://dx.doi.org/10.1134/S0022476615030129
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