Crystal structures and Hirshfeld surface analyses of (N -hexyl- N -methyldithiocarbamato-κ 2 S, S ′)triphenyltin(IV) and [ N -methyl- N -(2-phenylethyl)dithiocarbamato-κ 2 S, S ′]triphenyltin(IV)

Abstract

The crystal and molecular structures of two triphenyltin dithiocarbamate compounds, viz. [Sn(C6 H5)3 (C8 H16 NS2)], (I), and [Sn(C 6 H5)3 (C10 H12 NS2)], (II), are described. The dithiocarbamate ligand in each molecule coordinates in an asymmetric fashion resulting in heavily distorted tetrahedral C 3 S coordination geometries for the Sn atoms, with the distortions traced to the close approach of the non-coordinating thione-S atom. The molecular packing in both compounds features C - H...π(Sn-phenyl) interactions. In (I), the donors are Sn-phenyl-C - H groups leading to centrosymmetric aggregates, while in (II), the donors are both Sn-phenyl-C - H and methyl-C - H groups leading to supramolecular chains propagating along the b axis. The identified aggregates assemble into their respective crystals with no directional interactions between them. An analysis of the Hirshfeld surfaces show distinctive patterns, but an overwhelming predominance (>99% in each case) of H...H, C...H/H...C and S...H/H...S contacts on the respective Hirshfeld surface.