Model Coordination Complexes for Designing Poly(terthiophene)/Rh(I) Hybrid Materials with Electrochemically Tunable Reactivities

Thomas B. Higgins, Chad A Mirkin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The synthesis and characterization of two chiral, redox-active Rh(I) bis(diphenylphosphinite) monomers, complexes 3 and 4, are reported. Complex 4, [(η2-1,2- bis(diphenylphosphinite),4-oxo-6-(3′-α-terthiophene)Rh(I)(η 4-C7H8)]BF4, can be electrochemically polymerized to form poly-4, and the η4-C7H8 ligand can be hydrogenated in THF to form the metal-containing polymer 17. Polymer 17 is proposed to consist of a poly(terthiophene) backbone with Rh(I) phenyl-bridged dimers acting as cross-linkers between neighboring polymer chains. This structural formulation for polymer 17 is based upon its electrochemistry and a comparison with the solution chemistry of monomer 4. Significantly, this study discusses the importance of balancing polymerization potential, metal oxidation potential, and polymer ligating properties in the design of high surface area, polymeric, redox-switchable hemilabile ligands.

Original languageEnglish (US)
Pages (from-to)1589-1595
Number of pages7
JournalChemistry of Materials
Volume10
Issue number6
DOIs
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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