Synthesis and characterization of heterobimetallic complexes of the type [(Cu)double-under-bar(pn)2][MCl4] where M = Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II)

A series of new bimetallic transition metal complexes of the type [Cu(pn)(2)] [MCl4] have been synthesized (where M = Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), pn = 1,3-diaminopropane) and characterized by elemental analysis, molar conductance, TGA, IR and electronic spectra. All the compounds are 1:1 electrolyte in DMF. The Cu(II) ion is square-planar while metal ions in the anionic moiety acquire their usual tetrahedral arrangement. On the basis of these studies it is concluded that anionic moiety is electrically stabilized by its cationic counterpart. (C) 2012 Production and hosting by Elsevier B.V. on behalf of King Saud University.