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Chelation of Na+ cations in nonaqueous solvents. Structural requirements and methodological considerations

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Abstract

Intrinsic formation constants for complexes of Na+ ions with a series of polyamines have been determined from23Na NMR measurements in binary mixtures of tetrahydrofuran (THF) and amines. The results show in a totally unambiguous manner a regular decrease in the magnitude of the chelate effect with the number of atoms intervening between the nitrogen ligators. The key assumption, tetracoordination of the cation, is critically examined, and experimental evidence is adduced in its support.

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Authors and Affiliations

  1. Laboratoire de Chimie Organique Physique, Institut de Chimie, Université de Liège au Sart-Tilman, 4000, Liège, Belgium

    Stéphane Chalais, Alfred Delville, Christian Detellier, André Gerstmans & Pierre Laszlo

  2. Départment de Chimie, Université d'Ottawa, K1N 9B4, Ontario, Canada

    Christian Detellier

Authors
  1. Stéphane Chalais
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  2. Alfred Delville
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  3. Christian Detellier
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  4. André Gerstmans
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  5. Pierre Laszlo
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Chalais, S., Delville, A., Detellier, C. et al. Chelation of Na+ cations in nonaqueous solvents. Structural requirements and methodological considerations. J Solution Chem 12, 33–40 (1983). https://doi.org/10.1007/BF00650710

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  • DOI: https://doi.org/10.1007/BF00650710

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