Chiral recognition of binaphthyl derivatives using electrokinetic chromatography and steady-state fluorescence anisotropy: effect of temperature

Electrophoresis. 2004 Feb;25(4-5):753-7. doi: 10.1002/elps.200305649.

Abstract

The effect of temperature on the chiral recognition of binaphthyl derivatives in the presence of poly sodium N-undecanoyl-LL-leucyl-leucinate (poly LL-SULL) is examined using electrokinetic chromatography (EKC) and steady-state fluorescence anisotropy. An examination of the effect of temperature suggests that the chiral recognition of 1,1'-binaphthyl-2,2'-diol enantiomers improves with increasing temperature, whereas lower temperatures resulted in better enantiosolectivity in the case of 1,1'-binaphthyl-2,2'-diyl hydrogen phosphate enantiomers. In addition, steady-state fluorescence anisotropy results show that the anisotropy of the two enantiomers are different when complexed to poly-(LL) SULL. As would be expected, the enantiomer that binds stronger to the chiral pseudostationary phase, as evidenced by EKC experiments, had higher anisotropy values. The results of this study suggest that steady-state fluorescence anisotropy can be used to gain further insight into chiral recognition.

MeSH terms

  • Chromatography, Micellar Electrokinetic Capillary / methods*
  • Fluorescence Polarization / methods*
  • Leucine / analogs & derivatives
  • Naphthols / chemistry
  • Naphthols / isolation & purification*
  • Polymers / chemistry
  • Stereoisomerism
  • Surface-Active Agents / chemistry
  • Temperature

Substances

  • Naphthols
  • Polymers
  • Surface-Active Agents
  • Leucine