Reconnaissance of the reactions of carbamodithiolate salts with dialkyltin dichloride

Abstract

Reactions of carbamodithiolate salts viz., c-C3H5NH3+(L1)− and c-C6H11NH3+(L2)− (L1 = cyclopropylcarbamodithioate, L2 = cyclohexylcarbamodithioate) with R2SnCl2 (R = Me or n-Bu) were investigated in dichloromethane for the first time. A series of four diorganotin(IV) complexes of composition [Me2Sn(L1)Cl] (1), [Me2Sn(L1)2] (2), [Me2Sn(L2)2] (3) and [n-Bu2Sn(L2)2] (4) were isolated and characterized by spectroscopic methods. The structures of the two carbamodithiolate salts and the diorganotin(IV) compounds 1-4 were accomplished by X-ray crystallographic analysis revealing distorted square pyramid geometry for 1, but skewed trapezoidal bipyramids for 2-4. Influence of the carbamodithiolate moiety on the hydrogen-bond interactions and non-covalent contacts, as well as on the packing of the structures, is discussed. The 3D Hirshfeld surfaces were mapped and used to study the intermolecular interactions.