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• W2064276617 abstract "Acetamidomalondihydroxamate (K2AcAMDH) and its manganese(II), iron(II), cobalt(II), nickel(II), copper(II) and zinc(II) complexes were synthesized and characterized by elemental analysis, UV–VIS, IR and magnetic susceptibility. The pK a1 and pK a2 values of the dihydroxamic acid in aqueous solution were found to be 8.0 ± 0.1 and 9.7 ± 0.1. The dihydroxamate anion AcAMDH behaves as a tetradentate bridging ligand through both hydroxamate groups, forming complexes with a metal to ligand ratio of 1 : 1 in the solid state. The FTIR spectra and thermal decompositions of the ligand and its metal complexes were recorded. The redox behavior of the complexes was investigated in aqueous solution by square wave voltammetry and cyclic voltammetry at neutral pH. In contrast to the solid state, in solution the copper(II) and zinc(II) ions form stable complex species with a metal to ligand ratio of 1 : 2. The iron(II) and nickel(II) complexes show a two-electron irreversible reduction behavior, while the copper(II) and zinc(II) complexes undergo reversible electrode reactions. The stability constants of the complexes were determined by square wave voltammetry." @default.
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• W2064276617 date "2004-04-15" @default.
• W2064276617 modified "2023-10-18" @default.
• W2064276617 title "Transition metal complexes of acetamidomalondihydroxamate: synthesis, spectral, thermal and electrochemical studies" @default.
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• W2064276617 doi "https://doi.org/10.1080/00958970410001696843" @default.
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