ELECTROCHEMICAL REDUCTION AND FURTHER COORDINATION OF SUBSTITUTED BETA-DIKETONES WITH CU(II), CO(II), NI(II), ZN(II) IN TETRAHYDROFURAN

Electrochemical studies on new substituted beta-diketones (HL) indicated that their one electron reduced form ultimately generates the corresponding anion L-. Advantage may be taken of the known coordination capabilities of L- with M(II) cations to generate the corresponding complexes, although the initial ligands HL do not coordinate quantitatively with M(II) in most cases. In these beta-diketones bulky alkyl substituents, either on the terminal carbons 1 and 2, or on the intermediate carbon 3, exert significant effects on the coordination capability of these ligands.