Poly[dibutyl­ammonium [nonamethylbis­(μ₃-sulfato-κ³O:O′:O′′)tristannate(IV)]]

In the structure of the title coordination polymer, {(C₈H₂₀N)[Sn₃(CH₃)₉(SO₄)₂]}_n, each of the three Sn^IV 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 μ₃-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).