Synthesis, Spectroscopy, and SOD Activity of Some Imidazolate‐Bridged Copper(II) Complexes
摘要:
The synthesis, spectroscopic, magnetic susceptibility, and superoxide dismutase (SOD) activity measurements of the imidazolate-bridged complexes [(Salgly)Cu-Im-Cu(Salgly)]Na, [(Salgly)Cu-Im-Ni(Salgly)]Na, and [(Salgly)Cu-Im-Zn(Salgly)]Na, where Salgly = salicylideneglycinate, Im = imidazolate ion are described. Related copper(II) mononuclear complexes are also described. A pH-dependent EPR and UV-visible study of a 50% aqueous DMSO solution of the binuclear complexes suggest that the complexes are stable in the pH-range 6.50-10.50. At lower pH, the imidazolate bridge breaks apart with decreasing pH value.