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- W1996150720 abstract "The di-Schiff base complexes, [N,N′-bis(2-pyridyl)methylene-1,2-diaminoethane]- (N,N′,N″,N′′′)-copper(II) (1), and [N,N′-bis(2-acetylpyrazyl)methylene-1,3-diaminopropane]-(N,N′,N″,N′′′)-copper(II) (2), were prepared in the perchlorate form, and characterized using elemental analysis, UV/Vis, infrared (IR) and electronic paramagnetic resonance (EPR) spectroscopies. The relative thermodynamic stabilities of these complexes were estimated by circular dichroism (CD), using bovine albumin as the competitive ligand. Their antioxidant properties were verified by their catalytic activities in the dismutation of superoxide radicals (SOD activity), and in the disproportionation of hydrogen peroxide (catalase activity). The determined SOD-activities were comparable to that of known SOD mimics, with IC50=0.447 for (1) and 0.0902 μM for (2), in comparison to 0.0054 μM for the native Cu2Zn2-SOD. The determined rate constants for the catalase activity were k=0.098 mol−1 dm3 s−1, and 1.10 mol−1 dm3 s−1 to compounds (1) and (2), respectively." @default.
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- W1996150720 date "1998-08-01" @default.
- W1996150720 modified "2023-10-18" @default.
- W1996150720 title "Antioxidant and pro-oxidant properties of some di-Schiff base copper(II) complexes" @default.
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- W1996150720 doi "https://doi.org/10.1016/s0162-0134(98)10034-x" @default.
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