Dibenzyl­aza­nium (oxalato-κ²O,O′)triphenyl­stannate(IV)

The title compound, (C₁₄H₁₆N)[Sn(C₆H₅)₃(C₂O₂)], was synthesised by allowing C₂O₄(Bz₂NH₂)₂ (Bz = benzyl) to react with SnPh₃Cl. The asymmetric unit is built up by four SnPh₃C₂O₄ anions and four Bz₂NH₂ cations which are related by a pseudo-inversion centre. Each Sn^IV cation is five-coordinated by the three phenyl groups and two O atoms belonging to the chelating oxalate ligand; the coordination geometry is that of a distorted trigonal bipyramid. Anions and cations are linked through N—H...O hydrogen bonds into a layer structure parallel to (001). Moreover, the anion–cation pairs are associated by two bifurcated N—H...O hydrogen bonds, generating pseudo-dimers. One of the phenyl groups of one anion is disordered over two sets of sites in a 0.69:0.31 ratio. The Flack parameter value of 0.44 (1) indicates racemic twinning.