Magnetic,epr and SOD studies of some Cu(II)-Cu(II), Cu(II)-Ni(II) and Cu(II)-Zn(II) imidazolate bridged complexes |
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Authors: | Patel R N |
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Institution: | Department of Chemistry, A.P.S. University, Rewa (M.P.) 486003, India. rnp64@yahoo.co.uk |
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Abstract: | Magnetic, spectroscopic and superoxide dismutase activity of imidazolate bridged (Salala)Cu-Im-Cu(Salala)]Na, (Salala)Cu-Im-Zn(Salala)]Na and (Salala)Cu-Im-Ni(Salala)]Na (Salala=Salicyledenealiniate, Im=Imdiazolate) are described. The epr and electronic spectra of related mononuclear complexes, viz., (Salala)Cu-OH(2)] and (Salala)Cu-ImH] also described. Appearance of a half-field signal in polycrystalline and decrease in mu(eff) per copper(II) ion indicate super exchange coupling between copper(II) ion in (Salala)Cu-Im-Cu(Salala)]Na binuclear complex. A pH-dependent epr and UV-vis study of 50% aqueous DMSO solution of binuclear complexes suggest that the complexes are stable in narrow pH range. |
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