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Title

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

Authors
Martínez-Viviente, E.
Pregosin, P.S.
Published in Chemistry - A European Journal. 2004, vol. 10, no. 12, p. 2912-2918
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 saltsConcentration effectsDiffusionIon pairsNMR spectroscopy
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PMID: 15214072
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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 - A European Journal, 2004, vol. 10, n° 12, p. 2912-2918. https://archive-ouverte.unige.ch/unige:7761

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Deposited on : 2010-06-21

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