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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

Published inChemistry, vol. 10, no. 12, p. 2912-2918
Publication date2004
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
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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ISSN of the journal0947-6539
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