Binaphthyl-Bipyridyl cyclic dyads as a chiroptical switch

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129 Citations (Scopus)


A series of chiral cyclic dyads, axially chiral binaphthyls linked to a 3,3′-bipyridyl, was synthesized. The dyad 2 bearing methoxy groups exhibited ON/OFF properties in circularly polarized luminescence (CPL), yielding a |glum| of 1.6 × 10-3 or 0 without any change in fluorescence. This type of CPL switch is unprecedented. Regioisomer 4 exhibited a dextro/levo rotation switching ability in [α]D. X-ray structures as well as experimental and theoretical analyses suggested that the switching properties depended on conformational changes.

Original languageEnglish
Pages (from-to)5334-5338
Number of pages5
JournalJournal of the American Chemical Society
Issue number16
Publication statusPublished - Apr 25 2018

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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