catena-Poly­[[tri­methyl­tin(IV)]-μ-2,3-bis(4-chloro­phenyl)­propenoato-κ²O:O′]

The title compound, [Sn(CH₃)₃(C₁₅H₉Cl₂O₂)]_n, forms polymeric chains involving both O atoms of the carboxyl­ate group. The coordination geometry around the Sn atom is distorted trigonal–bipyramidal. The three methyl C atoms occupy the equatorial positions, with Sn—C distances of 2.113 (3)–2.124 (2) Å, and two O atoms, including one from a symmetry-related mol­ecule, are at the axial positions, with Sn—O distances of 2.152 (2) and 2.454 (2) Å.