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Enantioselective adsorption of chiral amines on an induced helical poly(bis(4-carboxyphenoxy)phosphazene): Chiral filter effect

Macromolecules, ISSN: 0024-9297, Vol: 44, Issue: 8, Page: 2457-2464
2011
  • 26
    Citations
  • 0
    Usage
  • 30
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    26
    • Citation Indexes
      26
  • Captures
    30

Article Description

Optically inactive poly((bis(4-carboxyphenoxy)phosphazene) (poly-1) showed a large optical rotation upon complexation with optically active (R)- or (S)-1-phenylethylamine (2) in DMSO after annealing the complex solution at 65 °C for ca. 2 h and maintained its optical activity in the presence of an equimolar amount of the opposite-handed 2. The detailed analysis of the enantiomeric excess of 2 adsorbed on the poly-1 revealed that the helical poly-1 induced by (R)- or (S)-2 most likely acts as a "chiral filter" to exclude one enantiomer from racemic 2, resulting in the retention of its induced helical structure. © 2011 American Chemical Society.

Bibliographic Details

Katsuhiro Maeda; Kenji Kuroyanagi; Shin Ichiro Sakurai; Toshio Yamanaka; Eiji Yashima

American Chemical Society (ACS)

Chemistry; Materials Science

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