Yayın: Stability of metal chelates of some hydroxamic acid ligands
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Kurum Yazarları
Türkel, Naciye
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Yayıncı:
Amer Chemical
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Özet
The binary ligand complexes formed between acetohydroxamic acid (Aha) and benzohydroxamic acid (Bha) ligands and selected transition metals (Sc(III), Y(III), and La(III)) were investigated potentiometrically in aqueous solution at (25 +/- 0.1) degrees C and I = 0.10 M NaCl to determine the protonation constants of the free ligands and stability constants of the binary complexes. The complexation model for each metal-ligand system was established from the potentiometric data using the software program BEST. The concentration distributions of the various metal-ligand complexes formed in solution were also evaluated. The complex stability was found to follow the trend Sc(III) > Y(III) > La(III) based on the ionic radius of the metal ions.
Açıklama
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Konusu
Thermodynamics, Chemistry, Engineering, Dissociation constants, Complexes, Hydrolysis, Copper(II), Siderophores, Scandium(3), Nickel(II), ION, Chelation, Complexation, Metal ions, Organic acids, Scandium, Scandium compounds, Sodium chloride, Transition metals, Acetohydroxamic acids, Aqueous solutions, Benzohydroxamic acid, Binary complexes, Complex stability, Complexation models, Concentration distributions, Free ligands, Hydroxamic acids, Lonic radius, Metal chelate, Metal ligand systems, Metal-ligand complexes, Potentiometric data, Protonation constants, Software program, Stability constants, Ligands
Alıntı
Türkel, N. (2011). "Stability of metal chelates of some hydroxamic acid ligands". Journal of Chemical and Engineering Data, 56(5), 2337-2342.