Vibrational spectral studies of the molecular adducts of SbCl 3, SbBr 3, BiCl 3, BiBr 3, ZnCl 2, CdCl 2 and HgCl 2 with tetramethylene sulfoxide

Abstract

The complexes SbCl 3(TMSO) 2, SbBr 3(TMSO) 2, BiCl 3(TMSO) 3, BiBr 3(TMSO) 3, ZnCl 2(TMSO) 2·5, CdCl 2(TMSO) 1·5, CdCl 2(TMSO), and HgCl 2(TMSO) 1·5 (TMSO = tetramethylene sulfoxide) have been prepared and investigated spectroscopically. The near and far i.r. and Raman assignments for the solids are discussed with emphasis on the metal-halogen and metal-oxygen vibrations. All molecules are shown to be coordinated through the oxygen, as indicated by the ligand frequency shifts to lower frequencies. Structure considerations for the solid-state species are discussed.