Synthesis, characterization and electrochemical properties of β-diketone complexes of ruthenium(III)
作者： Fathy A. El-Saied , Ramadan M. El-Bahnasawy , Magdi Abdel Azzem , Ayman K. El-Sawaf
DOI: 10.1016/S0277-5387(00)80110-2
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摘要: Abstract The reactions of ruthenium(III) chloride (1 mol) with acetylacetonylidene-4-aminoantipyrine (HL 1 ), monobenzoylacetylacetonylidene-4-aminoantipyrine 2 dibenzoylmethanylidene-4-aminoantipyrine 3 ) and antipyrine-4-azo-β-ethylacetoacetate 4 produce complexes the general formula RuHLCl . ligand antipyrine-4-azo-β-acetylacetone 5 reacts RuCl ·3H O to RuL Cl (H O)·H O. ligands HL -HL react as neutral bidentates in ketoenamine form, whereas a bidentate hydrazo form. monobasic tridentate azo were characterized using variety analytical, spectral, magnetic thermal measurements. electrochemical redox properties I–V have been studied by cyclic voltammetry acetonitrile. chloro-bridged dimer I–IV showed two reversible diffusion-controlled oxidation peaks. first was attributed corresponding mixed-valence complex second ruthenium(IV) complex. are dependent on nature ligand. monomeric V has quite different properties.
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