Synthesis and magnetic properties of copper(II) bis(phenylsulphinyl)ethane complexes

Two Cu-II complexes, [Cu-2(alpha-L)Cl-4]. H2O (1) and Cu-2(beta-L)Cl-4 (2) [alpha-L and beta-L=meso- and rac-PhS(O)(CH2)(2)S(O)Ph, respectively], were synthesized and characterized by elemental analysis, i.r. spectra and molar conductances. In each case, the Cu-II ion bonds to the S=O moiety through oxygen, and may be bridged by the ligand (alpha-L or beta-L). From magnetic moment measurements at room temperature and variable temperature magnetic susceptibilities, we suggest that complexes (1) and (2) exhibit weak ferromagnetic behaviour.