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• W2153128761 endingPage "184" @default.
• W2153128761 startingPage "175" @default.
• W2153128761 abstract "Synthesis and characterization of a series of ruthenium(III) Schiff base complexes of the type [RuIIILXY] where L=Schiff base viz. bis(naphthaldehyde)-o-phenylenediimine (naphoph), bis(naphthaldehyde)ethylenediimine (naphen), bis(naphthaldehyde)propylenediimine (naphprop) and bis(naphthaldehyde)diethylenetriimine (naphdien); XCl and YCl imidazole (Im) or 2-methylimidazole (2-MeIm) are reported. Elemental analysis, conductivity and IR studies of the complexes suggest an octahedral geometry around ruthenium. Magnetic moments of the complexes indicate a single unpaired electron in a low spin d5 configuration. Oxygenation studies in DMF or THF solutions suggest the reversible binding of molecular oxygen to the ruthenium(III) complexes. EPR studies at liquid nitrogen temperature and UVVis measurements at room temperature support the formation of a Ru(IV) superoxo species [RuIVL(O2·.)−Y]. The EPR spectrum of the Ru(IV) superoxo complex at 77 K (g1 = 2.063, g2 = 2.047, g3 = 2.023) is consistent with the odd electron occupying a highly localized antibonding π* orbital of molecular oxygen. The reversible binding of O2 and CO has been carried out in DMF at 10, 25 and 40 °C. The complexes show discrimination against the binding of CO over O2 as evinced by values of KO2 and KCO in the complexes. The thermodynamic paramegers ΔH°, ΔG° and ΔS° for oxygenation and carbonylation reactions are evaluated." @default.
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• W2153128761 date "1990-08-01" @default.
• W2153128761 modified "2023-09-26" @default.
• W2153128761 title "Oxygenation and carbonylation studies of some ruthenium(III) Schiff base complexes containing nitrogen and oxygen as donor atoms. II" @default.
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• W2153128761 doi "https://doi.org/10.1016/s0020-1693(00)80297-2" @default.
• W2153128761 hasPublicationYear "1990" @default.
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