Switching on the phosphorescence of pyrene by cycloplatination

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

45 Citations (Scopus)

Abstract

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 PPh2groups 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
JournalOrganometallics
Volume28
Issue number1
DOIs
Publication statusPublished - 12 Jan 2009

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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