SYNTHESIS, PHYSICOCHEMICAL STUDIES AND SOLVATOCHROMISM OF SAME NEW LITHIUM MU-(TETRAARYLOXO)COBALTATE(II) AND ALLIED COMPLEXES

A variety of new bimetallic aryl oxide, acetylacetonato and their mixe d complexes, Li-2[Co(OAr)(4)], Li-2[Co(OPri)(2)(2,4-Me(2)C(6)H(3)O)(2) ] and Li-2[Co(acac)(4-n)(OPri)(n)] (n = 0, 1 and 2), were synthesized by the alcohol-phenol/acetylacetone exchange reaction of lithium tetra isopropoxocobaltate(ll) complex with phenols (o-chloro, o-bromo-, m-ch loro-, p-bromo, 2,4-dichloro- and 2,4-dimethyl) and acetylacetone, res pectively: various physicochemical and spectroscopic studies (viz. IR, electronic and magnetic susceptibility as well as molecular weight de terminations) have been carried out to throw light on the structural f eatures of the new complexes.