Acta Cryst. (2010). E66, m1141  [ doi:10.1107/S1600536810032733 ]

Monoclinic modification of aquadi-n-butylbis(pyrazine-2-carboxylato-²N¹,O)tin(IV)

S. W. Ng

Abstract: The asymmetric unit of the title organotin(IV) compound, [Sn(C₄H₉)₂(C₅H₃N₂O₂)₂(H₂O)], contains one-and-a-half molecules. The half-molecule is completed by crystallographic twofold symmetry, with its Sn and water O atoms lying on the rotation axis. Both molecules feature seven-coordinate Sn atoms in trans-C₂SnN₂O₃ pentagonal-bipyramidal coordination environments. The carboxylate anions N,O-chelate to the Sn atom. In the crystal, the carboxylate O atoms not involved in coordination serve as acceptors for O-HO hydrogen bonds from adjacent water molecules, generating a three-dimensional network.

Online 21 August 2010

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