The highest water exchange rate ever measured for a Gd(III) chelate

Chem Commun (Camb). 2005 Oct 7:(37):4729-31. doi: 10.1039/b508180g. Epub 2005 Aug 26.

Abstract

The complex [Gd(L)(H2O)]3- (H(6)L =N,N'-bis(6-carboxy-2-pyridylmethyl)ethylenediamine-N,N'-methylenephosphonic acid) displays the highest water exchange rate ever measured for a Gd(III) chelate (k(298)(ex)= 8.8 x 10(8) s(-1)), which is attributed to the flexibility of the metal coordination environment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chelating Agents / chemical synthesis*
  • Chelating Agents / chemistry
  • Electron Spin Resonance Spectroscopy
  • Gadolinium / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Conformation
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*
  • Organophosphonates / chemical synthesis
  • Organophosphonates / chemistry*
  • Oxygen / chemistry
  • Spectrophotometry, Ultraviolet
  • Water / chemistry

Substances

  • Chelating Agents
  • Organometallic Compounds
  • Organophosphonates
  • aqua(N,N'-bis(6-carboxy-2-pyridylmethyl)ethylenediamine-N,N'-methylenephosphonic acid)gadolinate(III)
  • Water
  • Gadolinium
  • Oxygen