Structural aspects in diorganotin(IV) complexes. Ph2Sn(S2CNMe2)(NCS) case study

Abstract

The diorganotin(IV) compound Ph2Sn(S2CNMe2)(NCS) (3) was obtained by reacting either Ph2Sn(SCN)2 (1) or Ph2Sn(S2CNMe2)Cl (2) with sodium dimethyldithiocarbamate, in a 1:1 molar ratio, in CH2Cl2. Multinuclear (1H, 13C and 119Sn) NMR spectroscopy and mass spectrometry were used to characterize the new complex. Single-crystal X-ray diffraction studies revealed a bidentate behaviour of the dithiocarbamato ligand and a monodentate coordination of the NCS moiety through its nitrogen atom, thus resulting in a pentacoordinated C2SnS2N core. A 3D supramolecular network built through weak intermolecular S∙∙∙S and S∙∙∙H interactions was evidenced in the crystal of 3.