catena-Poly[[triphenyltin(IV)]-μ-5-amino-2-nitrobenzoato-κ2O1:O1′]

Abstract

The title compound, [Sn(C6H5)3(C7H5N2O4)]n, forms polymeric chains along [010]. The SnIV 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.