Synthesis and Physico-chemical Studies of Some Binuclear Mixed Carboxylates of Copper(II)

Chemical Laboratories, University of Rajasthan, Jaipur-302 004 Anhydrous copper(II) acetate undergoes substitution reactions with higher carboxylic acids refLuxing in toluene, yielding soluble copper(Il) Carboxylates with general formula Cu(OOCCH3)2-n,(OOCR)n (where R = C13 H27 C15H31 C17H35 and C21H42 and n=1 or 2) These complexes on recrystallisation from benzene-alcohol mixtures from alcoholate complexes with the formulae Cu(OOCCH3)(OOCR).R'OH and CU(OOCR)2.R'OH (where R' =Me, Et and Pr1). Elemental analyses, infrared and electronic spectra, magnetic measurements and ebullioscopic molecular weight determination of all the above complexes indicate their dimeric nature with carboxylate groups acting as bridging ligands