Self-assembly with block copolymers through metal coordination of SCS-PdII pincer complexes and pseudorotaxane formation

Clinton R. South, Mary Nell Higley, Ken C F Leung, Daniela Lanari, Alshakim Nelson, Robert H. Grubbs*, J. Fraser Stoddart, Marcus Weck

*Corresponding author for this work

Research output: Contribution to journalArticle

50 Scopus citations

Abstract

Poly(norbornene)-based block copolymers containing side chains of palladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/dibenzylammonium salts were synthesized. Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants (Ka) greater than 10 5M-1. The self-assembly processes were monitored by using both 1H NMR spectroscopy and isothermal titration calorimetry. In all cases, we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.

Original languageEnglish (US)
Pages (from-to)3789-3797
Number of pages9
JournalChemistry - A European Journal
Volume12
Issue number14
DOIs
StatePublished - May 3 2006

Keywords

  • Copolymerization
  • Crown compounds
  • Palladium
  • Pincer complexes
  • Supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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