Acta Cryst. (2002). E58, m220-m222 [doi:10.1107/S1600536802007080]
Abstract: The title compound, [SnI3(C4H7O2)], is a member of the comparatively well known estertin family of compounds in which the carbonyl O of the 2-carboalkoxyethyl fragment bonds to Sn, augmenting its coordination and creating a five-membered chelate ring. The present case, where, as is often the case, Sn has trigonal bipyramidal coordination, is notable for the presence in the asymmetric unit of two distinct molecules markedly different in terms of the trans-axial Sn-O and Sn-I distances, 2.459 (8) versus 2.631 (8) and 2.7601 (10) versus 2.7188 (9) Å, respectively, and much greater pucker of the chelate ring associated with the longer Sn-O bond.
Online 25 April 2002
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