Complexation Properties of Ethylenediaminetetramethylenephosphonic Acid (EDTMP) with AlIII and VIVO
- 1 June 2004
- journal article
- research article
- Published by Wiley in European Journal of Inorganic Chemistry
- Vol. 2004 (12) , 2524-2532
Abstract
The complexation properties (including stoichiometries and stability constants of the complexes formed) of ethylenediaminetetramethylenephosphonic acid with AlIII and VIVO were studied in aqueous solution at an ionic strength of 0.2 M KCl, at 25 °C by means of pH potentiometry. For AlIII both mononuclear (AlLHn) and dinuclear (Al2LHn) species were found in solution, whereas for VIVO only mononuclear complexes were detected. For each metal ion, a solid complex was isolated at acidic pH and was characterized stoichiometrically. 1H and 31P NMR (for AlIII), UV/Vis and EPR (for VIVO) spectra were used to confirm the potentiometric results and to suggest the most probable binding mode of the complexes formed in solution. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)Keywords
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