A NOVEL SYNTHETIC METHOD FOR AND THE STRUCTURE OF TETRAKIS(μ-BENZOATO-O:O')-BIS(TRIPHENYLPHOSPHINE OXIDE)DICOPPER(II). OXIDATIVE ADDITION OF DIBENZOYLPEROXIDE TO METALLIC COPPER

Abstract Dibenzoyl peroxide undergoes oxidative addition to metallic copper with triphenylphosphine in a mixed solvent (acetone, dichloromethane and trichloromethane) and affords the binuclear complex [Cu(C6H5COO)2(Ph3PO)]2. Crystals are monoclinic, space group A2/a, with cell parameters, a = 24.337(3), b = 10.566(1), c = 21.579(2) A, β = 93.18(1)°, V = 5540(1) A3, Z = 4, R = 0.042, and R w = 0.044 for 5872 observed reflections. Each copper ion is coordinated by four bridging bidentate benzoate ligands and one triphenylphosphine oxide group to form dimeric binuclear molecules.