Crystal structure and mass spectrometry of dibromodimethyl[1-methyl-2(3H)-imidazolinethione-S]tin(IV)

Abstract

The structure of Sn(CH3)2Br2·C4H6N2S [C4H6N2S = 1 -methyl-2(3H)-imidazolinethione] consists of trigonal-bipyramidal molecules held together in pairs by two N–H ⋯ Br hydrogen bonds. The ligand is bonded to the metal through the sulphur atom. The bromine atoms occupy apical positions with a greater Sn–Br bond length for the hydrogen-bonded atom. The mass spectra of Sn(CH3)2Br2·C4H6N2S and Sn(CH3)2Cl2·C4H6N2S show a much lower tendency for the bromine complex to form ions containing the deprotonated ligand through elimination of hydrogen halide.