Journal of the Chemical Society, Dalton Transactions p. 2381 - 2386 (1986)
Update date:2022-08-04
Topics:
Woon, Tai Chin
McDonald, Robert
Mandal, Sanat K.
Thompson, Laurence K.
Connors, Sean P.
Addison, Anthony W.
Binuclear, hydroxo-bridged, copper(II) complexes of a series of quadridentate pyridazine and phthalazine thioether ligands involving nitrogen donor groups (derived from pyridine, imidazole, benzimidazole) exhibit room-temperature magnetic moments in the range 1.1-1.7 B.M., indicative of antiferromagnetically coupled binuclear copper(II) centres.Cyclic voltammetry and coulometry on most of these systems indicate reversible or quasi-reversible redox processes, involving two-electron transfer, at positive potentials (0.23-0.49 V vs. a saturated calomel electrode in CH3CN or dimethylformamide).Mononuclear copper(II) derivatives, involving bidentate ligands, also exhibit reduction at positive potentials.Catecholase activity involving 3,5-di-t-butylbenzene-1,2-diol has been demonstrated for the hydroxo-bridged complex
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