catena-Poly[[triphenyl­tin(IV)]-μ-5-amino-2-nitro­benzoato-κ(2) O (1):O (1′)]

The title compound, [Sn(C(6)H(5))(3)(C(7)H(5)N(2)O(4))](n), forms polymeric chains along [010]. The Sn(IV) ion is five-coordinated in a distorted trigonal–bipyramidal geometry by two monodentate carboxyl­ate groups and three phenyl rings. The axial sites are occupied by the O atoms of two symmetry-related carboxyl­ate groups [O—Sn—O = 170.88 (3)°]. The benzene ring of the 5-amino-2-nitro­benzoate ligand forms dihedral angles of 82.92 (6), 81.10 (6) and 83.54 (6)° with respect to the three phenyl rings. In the crystal, the chains are linked by inter­molecular N—H⋯O and weak C—H⋯O inter­actions into a three-dimensional network. The crystal structure is further stabilized by weak inter­molecular C—H⋯π inter­actions.