Di-, tri-, pseudo-di- and pseudo-tetra-acetylenic polymers of platinum: Synthesis, characterization and optical spectra

Jack Lewis*, Muhammad S. Khan, Ashok K. Kakkar, Brian F G Johnson, Todd B. Marder, Helen B. Fyfe, Felix Wittmann, Richard H. Friend, Ann E. Dray

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

152 Citations (Scopus)

Abstract

Reactions of Me3Sn-CC-(CC-)m-CC-SnMe3 (m= 0, 1) (1, 2), Me3Sn-(CC)m-p-C6H4-(CC)m-SnMe3 (m = 1, 2) (3, 4) with the platinum metal halide complexes, [Pt(XnBu3)2Cl2] (where X = P (5), As (6)) afford high molecular weight polymeric species, [-Pt(XnBu3)2-CC-(CC)m-CC-]n (7-10), and [-Pt(PnBu3)2-(CC)m-p-C6H4-(CC)m-]n (11, 12) in excellent yields. Investigations of the optical absorption and photoluminescence spectra of these complexes show extended π-electron conjugation through the metal sites on the chain, with a lower π-π* energy gap for triacetylenic than for the diacetylenic polymeric complexes. Well-resolved vibronic structure associated with the -CC- stretching frequency is observed for both absorption and emission, indicating strong electron-phonon coupling for the di- and triacetylenic polymers.

Original languageEnglish
Pages (from-to)165-176
Number of pages12
JournalJournal of Organometallic Chemistry
Volume425
Issue number1-2
DOIs
Publication statusPublished - Feb 25 1992

ASJC Scopus subject areas

  • Biochemistry
  • Chemical Engineering (miscellaneous)
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Materials Chemistry

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