Complexation properties ethylenediaminetetramethylenephosphonic acid (EDTMP) with AlIII and VIVO

Valerio Di Marco, Melinda Kilyen, Tamás Jakusch, Péter Forgó, György Dombi, Tamás Kiss

Research output: Contribution to journalArticle

16 Citations (Scopus)


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 (Al 2LHn) species were found in solution, whereas for V IVO 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.

Original languageEnglish
Pages (from-to)2524-2532
Number of pages9
JournalEuropean Journal of Inorganic Chemistry
Issue number12
Publication statusPublished - Jun 21 2004



  • Aluminum
  • Aminophosphonates
  • Bioinorganic chemistry
  • Speciation
  • Vanadium

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this