[-Benzyl--(2-phenyl-eth-yl)di-thio-carbamato-κ,']tri-phenyl-tin(IV) and [bis-(2-meth-oxy-eth-yl)di-thio-carbamato-κ,']tri-phenyl-tin(IV): crystal structures and Hirshfeld surface analysis.

The crystal and mol-ecular structures of two tri-phenyl-tin di-thio-carbamates, [Sn(CH)(CHNS)], (I), and [Sn(CH)(CHNOS)], (II), are described. In (I), the di-thio-carbamate ligand coordinates the Sn atom in an asymmetric manner, leading to a highly distorted trigonal-bipyramidal coordination geometry defined by a CS donor set with the weakly bound S atom approximately to one of the -C atoms. A similar structure is found in (II), but the di-thio-carbamate ligand coordinates in an even more asymmetric fashion. The packing in (I) features supra-molecular chains along the axis sustained by C-H⋯π inter-actions; chains pack with no directional inter-actions between them. In (II), supra-molecular layers are formed, similarly sustained by C-H⋯π inter-actions; these stack along the axis. An analysis of the Hirshfeld surfaces for (I) and (II) confirms the presence of the C-H⋯π inter-actions but also reveals the overall dominance of H⋯H contacts in the respective crystals.