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

Research output: Contribution to journalArticle

151 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

Fingerprint

Platinum
optical spectrum
Polymers
platinum
Phonons
Electrons
Platinum metals
Metal halides
metal halides
Coordination Complexes
polymers
synthesis
conjugation
Light absorption
Stretching
molecular weight
Photoluminescence
Energy gap
optical absorption
electrons

ASJC Scopus subject areas

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

Cite this

Di-, tri-, pseudo-di- and pseudo-tetra-acetylenic polymers of platinum : Synthesis, characterization and optical spectra. / Lewis, Jack; Khan, Muhammad S.; Kakkar, Ashok K.; Johnson, Brian F G; Marder, Todd B.; Fyfe, Helen B.; Wittmann, Felix; Friend, Richard H.; Dray, Ann E.

In: Journal of Organometallic Chemistry, Vol. 425, No. 1-2, 25.02.1992, p. 165-176.

Research output: Contribution to journalArticle

Lewis, Jack ; Khan, Muhammad S. ; Kakkar, Ashok K. ; Johnson, Brian F G ; Marder, Todd B. ; Fyfe, Helen B. ; Wittmann, Felix ; Friend, Richard H. ; Dray, Ann E. / Di-, tri-, pseudo-di- and pseudo-tetra-acetylenic polymers of platinum : Synthesis, characterization and optical spectra. In: Journal of Organometallic Chemistry. 1992 ; Vol. 425, No. 1-2. pp. 165-176.
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