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Acta Cryst. (2012). E68, m1380-m1381
[ doi:10.1107/S1600536812042894 ]

Poly[dibutylammonium [nonamethylbis([mu]3-sulfato-[kappa]3O:O':O'')tristannate(IV)]]

T. Diop, L. Diop and A. van der Lee

Abstract: In the structure of the title coordination polymer, {(C8H20N)[Sn3(CH3)9(SO4)2]}n, each of the three SnIV atoms is coordinated in a trigonal-bipyramidal manner by three methyl groups in the equatorial plane and by two O atoms of SO42- anions in the axial positions. The [mu]3-bridging mode of the sulfate anions leads to the formation of corrugated anionic layers parallel to (100). The uncoordinating O atom of one of the two SO42- anions is N-H...O hydrogen-bonded to the dibutylammonium cation interconnecting the anionic sheets. The structure is partially disordered. The dibutyl ammonium ion is found on two positions with an occupancy ratio of 0.525 (10):0.475 (10), and one sulfate group with three connecting trimethyl stannyl groups is also positionally disordered over two sets of sites with an occupancy ratio of 0.725 (4):0.275 (4).

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