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• W1992353313 abstract "Abstract A new binuclear O-bridged Cu(II) complex with 4-chlorophenyl acetate and 2,2′-bipyridine has been synthesized and characterized using FT-IR, powder and single crystal XRD and electrochemical solution studies. The results revealed that the two penta-coordinated Cu(II) centers are linked by two carboxylate ligands in end-on bonding fashion. The coordination geometry is slightly distorted square pyramidal (SP) with bridging oxygen atoms occupying the apical position and other ligands lying in the equatorial plane. The striking difference in Cu–O bond distance of the bridging oxygen atom in the complex may be responsible for the SP geometry of Cu(II) ion. The complex gave rise to metal centered irreversible electro-activity where one electron Cu(II)/Cu(III) oxidation process and a single step two electron Cu(II)/Cu(0) reduction process was observed. The redox processes were found predominantly adsorption controlled. The values of diffusion coefficient and heterogeneous rate constant for oxidation process were 6.98 × 10−7 cm2 s−1 and 4.60 × 10−5 cm s−1 while the corresponding values for reduction were 5.30 × 10−8 cm2 s−1 and 5.41 × 10−6 cm s−1, respectively. The formal potential and charge transfer coefficient were also calculated. The DNA-binding ability was explored through cyclic voltammetry and UV–Visible spectroscopy. Diminution in the value of Do for oxidation indicated the binding of the complex with DNA corresponding to Kb = 8.58 × 104 M−1. UV–Visible spectroscopy yielded e = 49 L mol−1 cm−1 and Kb = 2.96 × 104 M−1. The data of both techniques support each other. The self-induced redox activation of the complex, as indicated by cyclic voltammetry heralds its potential applications in redox catalysis and anticancer activity." @default.
• W1992353313 created "2016-06-24" @default.
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• W1992353313 date "2015-08-01" @default.
• W1992353313 modified "2023-09-28" @default.
• W1992353313 title "Synthesis, crystal structure and electrochemical and DNA binding studies of oxygen bridged-copper(II) carboxylate" @default.
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• W1992353313 doi "https://doi.org/10.1016/j.molstruc.2015.03.058" @default.
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