Abstract
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 SnIV 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.
Highlights
SnPh3C2O4 anions and four Bz2NH2 cations which are related by a pseudo-inversion centre
Each SnIV cation is fivecoordinated 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)
Summary
Ndongo Gueye,a Libasse Diop,a* Kieran C. Molloyb and Gabrielle Kociok-Köhnb a Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal, and b Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, England Key indicators: single-crystal X-ray study; T = 150 K; mean (C–C) = 0.007 Å; disorder in main residue; R factor = 0.031; wR factor = 0.070; data-to-parameter ratio = 15.8.
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