The Direct Electrochemical Synthesis Of Some Transition Metal Carboxylates
The transition metal carboxylates M(O2CR)n (M = Cr, R = C2H5, C6H5, n = 3; M = Mn, Fe, Ni, R = CH3, C2H5, C6H5, n-C7H15, n = 2, not all combinations) have been prepared by oxidising suitable metal anodes electrochemically in solutions of RCOOH in acetonitrile. With Co and Cu, a wide range of carboxylic acids (R = C2H5, c-C3H5, c-C5H9, C6H5, n-C4H9, n-C7H15, 2-ethylhexanoic, oleic, linoleic) has been used successfully to give M(O2CR)2. The advantages of the method are discussed. The preparation of Cu(O2CR)2 involves the prior formation of CuO2CR at the anode, followed by oxidation by the solvent.