THERMAL STUDIES ON SOME METAL-COMPLEXES OF HEXAMETHYLENIMINECARBODITHIOATE

Hexamethyleniminecarbodithioate complexes of the type M(HMICdt)n, wher e M is a metal, Pb(II), Bi(III), Ti(IV), Se(IV), Th(IV), UO2(VI) or Mo O2(VI), n is the valency of the metal, and HMICdt is hexamethylenimine carbodithioate, have been synthesized and characterized. In these comp lexes, the dithio (CSS-) group exhibits univalent, bidentate character and coordinates symmetrically with the metal through the bisulfur for k. Thermogravimetric studies indicate that there is an initial endothe rmic reaction, followed by an exothermic reaction. The heat of volatil ization and dissociation were calculated from the TG curves.