Methyl(phenyl)bis(quinoline-2-carboxylato-κ2N,O)tin(IV) monohydrate

The SnIV atom in each of the two independent molecules in the asymmetric unit of the title compound, [Sn(CH3)(C6H5)(C10H6NO2)2]·H2O, is N,O-chelated by two quinoline-2-carboxylate ions; the dative Sn—N bonds are significantly longer than the covalent Sn—O bonds. The two O and two N atoms comprise a trapezoid, and the diorganotin skeleton is bent over the longer N—N edge [C—Sn—C = 144.2 (1) and 144.5 (1)° in the two independent molecules]. The uncoordinated water molecules serve to connect the skew-trapezoidal bipyramidal tin-bearing molecules, generating a linear chain motif running along the ac diagonal. The crystal studied was a non-merohedral twin having a minor component of 33.2 (1)%.