Helical stereochemistry and chiral apple halves. 2. La coupe du roi via double helical complexation using oligo(bipyridine) strands and Cu(I)/Ag(I)

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Abstract

Oligo(bipyridine) strands and Cu(I)/Ag(I) form duplexes having a 21‐screw coincidental with a C2‐axis. A segment containing a complete turn of the duplex can be considered to be a coupe du roi ensemble of two homochiral strands. Moreover, for D2d symmetry monocationic Cu(I) complexes of bipyridine trimers and pentamers, addition of the requisite Cu(I) cations is a true chemical example of la coupe du roi. In this reaction, an achiral monocationic complex is converted into a multiple‐cationic duplex of two homochiral and homotopic 21‐helical halves. The chirality of the resulting duplex is a function of the particular set of bipyridine enantiotopic faces which are used for binding the additional cations. © 1993 Wiley‐Liss, Inc.

Original languageEnglish
Pages (from-to)272-276
Number of pages5
JournalChirality
Volume5
Issue number4
DOIs
StatePublished - 1 Jan 1993

Keywords

  • chiral polysectioning
  • chiral recognition
  • chirality
  • helical stereochemistry
  • la coupe du roi

ASJC Scopus subject areas

  • Analytical Chemistry
  • Catalysis
  • Pharmacology
  • Drug Discovery
  • Spectroscopy
  • Organic Chemistry

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