Article ID Journal Published Year Pages File Type
1237139 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2005 8 Pages PDF
Abstract
X-band electron spin resonance (ESR) and UV-vis spectra of a homobinuclear [(Bipy)2Cu-E-Im-Cu(Bipy)2](BF4)3 and a heterobinuclear [(Bipy)2Cu-E-Im-Zn(Bipy)2](BF4)3 complexes, E-Im = 2-ethylimidazolate ion have been described as possible models for superoxide dismutase (SOD). Magnetic moment and ESR spectral measurements of the homobinuclear complex have shown an antiferromagnetic exchange interaction. From pH-dependent ESR and UV-vis spectral measurements studies, these complexes have been found to be stable over 8.5-10.5 pH range. These complexes catalyze the dismutation of superoxide (O2−) at biological pH. All the observations indicate that these complexes act as good possible models for superoxide dismutase.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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