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1H, (19)F, and (31)P PGSE NMR diffusion studies on chiral organic salts: ion pairing and the dependence of a diffusion value on diastereomeric structure. | LitMetric

AI Article Synopsis

  • The study uses 1H, (19)F, and (31)P pulsed field gradient spin-echo techniques to investigate the diffusion properties of chiral organic salts with hexacoordinate phosphate anions.
  • The research highlights how diffusion values vary based on the diastereomeric structure of the compounds, marking a novel finding in this area.
  • It also observes significant impacts of solvent choice and concentration on the diffusion constants, while discussing the implications of ion pairing in these systems.

Article 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.

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Source
http://dx.doi.org/10.1002/chem.200305719DOI Listing

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