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Scientific article
English

1H, 19F and 31P PGSE NMR Diffusion Studies on Chiral Organic Salts: Ion Pairing and the Dependence of a Diffusion Value on Diastereomeric Structure

Contributors

Martínez-Viviente, E.; Pregosin, P.S.; Vial, Laurent; Herse, Christelle; Lacour, Jérôme

Published in

Chemistry, vol. 10, no. 12, p. 2912-2918

Publication date

2004

Abstract

1H, (19)F and (31)P pulsed field gradient spin-echo (PGSE) diffusion studies on chiral organic salts that contain hexacoordinate phosphate anions, namely tris(tetrachlorobenzenediolato)phosphate(V) (TRISPHAT) and bis(tetrachlorobenzenediolato)mono([1,1']binaphthalenyl-2,2'diolato)-phosphate(V) (BINPHAT), are reported. The first example of the dependence of a diffusion value on diastereomeric structure is presented. Marked solvent and concentration effects on the diffusion constants (D) of these salts are noted and the question of ion pairing is discussed.

Keywords

  • Chiral salts
  • Concentration effects
  • Diffusion
  • Ion pairs
  • NMR spectroscopy

UNIGE affiliation entities

Citation (ISO format)

MARTÍNEZ-VIVIENTE, E. et al. 1H, 19F and 31P PGSE NMR Diffusion Studies on Chiral Organic Salts: Ion Pairing and the Dependence of a Diffusion Value on Diastereomeric Structure. In: Chemistry, 2004, vol. 10, n° 12, p. 2912–2918. doi: 10.1002/chem.200305719

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Article

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Journal ISSN

0947-6539
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Creation

21/06/2010 10:27:35

First validation

21/06/2010 10:27:35

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