Switching on the Phosphorescence of Pyrene by Cycloplatination

Jian Hu, John H.K. Yip*, Dik-Lung Ma, Kwok-Yin Wong, Wai-Hong Chung

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

50 Citations (Scopus)


1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+ and [M2(L)2(1,6-PyP)]2+ (M = Pd or Pt, L = diphosphines). The π → π* transitions of the pyrenyl ring are strongly perturbed by the PPh2 groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10−2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence.
Original languageEnglish
Pages (from-to)51-59
Number of pages9
Issue number1
Publication statusPublished - 12 Jan 2009

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

User-Defined Keywords

  • Hydrocarbons
  • Ions
  • Palladium
  • Phosphorescence
  • Platinum


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