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Ligand Substitution Processes. An NMR Study. I. Solvation Shells of Diamagnetic Cations Al3+ and Be2+

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Chemical and Biological Applications of Relaxation Spectrometry

Part of the book series: NATO Advanced Study Institutes Series ((ASIC,volume 18))

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Abstract

Nuclear magnetic resonance may be used as a relaxation method to study chemical reactions at equilibrium. Continuous wave nmr is a powerful tool to study the first solvation shell of diamagnetic cations for which the exchange of ligands between bound and free solvent molecules fit the nmr time scale. This ligand exchange is studied using not only 1H resonances, but also 31Р and 27Al spectra. An associative mechanism is found for the tetrahedral solvate A1(HMPA) 3+4 and dissociative processes for octahedral A1A 3+6 and tetrahedral Be 2+4 solvates (in nitromethane), where A is an organophosphorus solvent (trialkyl phosphates and phosphonates).

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Authors and Affiliations

  1. Laboratoire de Chimie Organique, Equipe de Recherche Associee au C.N.R.S., Universite de NANCY I, C.O. 140, 54037, Nancy Cedex, France

    J. J. Delpuech, M. R. Khaddar, A. A. Peguy & P. R. Rubini

Authors
  1. J. J. Delpuech
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  2. M. R. Khaddar
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  3. A. A. Peguy
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  4. P. R. Rubini
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Editor information

Editors and Affiliations

  1. Department of Chemistry and Applied Chemistry, University of Salford, Salford, England

    E. Wyn-Jones

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© 1975 D. Reidel Publishing Company, Dordrecht-Holland

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Delpuech, J.J., Khaddar, M.R., Peguy, A.A., Rubini, P.R. (1975). Ligand Substitution Processes. An NMR Study. I. Solvation Shells of Diamagnetic Cations Al3+ and Be2+ . In: Wyn-Jones, E. (eds) Chemical and Biological Applications of Relaxation Spectrometry. NATO Advanced Study Institutes Series, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-1855-5_34

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  • DOI: https://doi.org/10.1007/978-94-010-1855-5_34

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-1857-9

  • Online ISBN: 978-94-010-1855-5

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