Spectroscopic studies of metal complexes of ethylenediaminetetra-acetic acid in aqueous-solution

R.H. Nuttall, D.M. Stalker, A.A. McConnell

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Aqueous solutions of the metal complexes of ethylenediaminetetra-acetic acid (EDTA) are widely used in analysis; though X-ray diffraction methods cannot be directly used for structural determination in solution, ultraviolet-visible region, vibrational and NMR spectroscopy studies demonstrate that the species in solution adopt a similar range of stereochemistries to those determined for the solid state. Thus a review of the spectroscopic properties of the solutions suggests that chelates are formed in which the denticity of EDTA varies from one to six and the co-ordination number about the metal from four to nine.
Original languageEnglish
Pages (from-to)425-434
Number of pages9
Issue number8
Publication statusPublished - Aug 1978


  • x-ray
  • spectroscopic studies
  • metal complexes
  • ethylenediaminetetra-acetic acid
  • aqueous-solutions

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