Main-chain and pendant poly([2]catenane)s incorporating complementary π-electron-rich and -deficient components

Christoph Hamers, Françisco M. Raymo, J. Fraser Stoddart

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

A main-chain poly([2]catenane), incorporating an average of 25 repeating [2]catenane units and having an Mn value of 35 kg mol-1, was synthesized by the polyesterification of a [2]catenane monomer composed of a bipyridinium-based tetracationic cyclophane mechanically interlocked with a 1,5-dioxynaphthalene-based macrocyclic polyether. Similarly, two main-chain poly(bis[2]catenane)s, both incorporating an average of 15 repeating bis[2]catenane units and both having Mn values of 45 kg mol-1, were prepared by the copolymerizations of a bis[2]catenane monomer, possessing two hydroxymethyl functions with an appropriate bis(isocyanate). The same copolymerization was employed in order to produce a pendant poly([2]catenane), incorporating an average of 20 repeating [2]catenane units and having an Mn value of 27 kg mol-1, from a [2]catenane monomer possessing two hydroxymethyl groups on its macrocyclic polyether component.

Original languageEnglish (US)
Pages (from-to)2109-2117
Number of pages9
JournalEuropean Journal of Organic Chemistry
Issue number10
DOIs
StatePublished - Oct 1998
Externally publishedYes

Keywords

  • Catcnanes
  • Molecular recognition
  • Polycatenancs
  • Self-assembly
  • Template-directed synthesis

ASJC Scopus subject areas

  • Organic Chemistry

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