Synthesis and characterization of luminescent cyclometalated platinum(II) complexes of 1,3-bis-hetero-azolylbenzenes with tunable color for applications in organic light-emitting devices through extension of π conjugation by variation of the heteroatom

Alan Kwun Wa Chan, Elizabeth Suk Hang Lam, Anthony Yiu Yan Tam, Daniel Ping Kuen Tsang, Wai Han Lam, Mei Yee Chan, Wing Tak Wong, Vivian Wing Wah Yam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

41 Citations (Scopus)

Abstract

A series of luminescent cyclometalated platinum(II) complexes of N^C^N ligands [N^C^N=2,6-bis(benzoxazol-2'-yl)benzene (bzoxb), 2,6-bis(benzothiazol- 2'-yl)benzene (bzthb), and 2,6-bis(N-alkylnaphthoimidazol-2'-yl)benzene (naphimb)] has been synthesized and characterized. Two of the platinum(II) complexes have been structurally characterized by X-ray crystallography. Their electrochemical, electronic absorption, and luminescence properties have been investigated. In dichloromethane solution at room temperature, the cyclometalated N^C^N platinum(II) complexes exhibited rich luminescence with well-resolved vibronic-structured emission bands. The emission energies of the complexes are found to be closely related to the electronic properties of the N^C^N li
Original languageEnglish
Pages (from-to)13910-13924
Number of pages15
JournalChemistry - A European Journal
Volume19
Issue number41
DOIs
Publication statusPublished - 4 Oct 2013
Externally publishedYes

Keywords

  • cyclometalation
  • density functional theory calculation
  • luminescence
  • organic light-emitting diodes
  • platinum

ASJC Scopus subject areas

  • Chemistry(all)

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