Characterization of the malate-aluminum(III) complex using 1H and 27Al NMR spectroscopy

Magn Reson Chem. 2007 Jun;45(6):518-21. doi: 10.1002/mrc.1996.

Abstract

Structural elucidation of a malate-aluminum(III) complex has been carried out using 1H and 27Al NMR spectroscopy. The 1H chemical shift perturbation clearly indicated the interaction between malate and Al(III) ion. The measurements of 27Al NMR and 1H-13C HSQC spectra demonstrated that the major form of a complex comprised two equivalent malate ions and two unequivalent Al(III) ions. With this constraint, an equilibrium geometry of the complex was proposed by a semi-empirical molecular orbital calculation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum / chemistry*
  • Aluminum Compounds / chemistry*
  • Hydrogen
  • Magnetic Resonance Spectroscopy
  • Malates / chemistry*
  • Molecular Structure
  • Organometallic Compounds / chemistry*
  • Software*

Substances

  • Aluminum Compounds
  • Malates
  • Organometallic Compounds
  • malate-aluminum(III) complex
  • Hydrogen
  • Aluminum