Luminescent cyclometalated alkynylplatinum(II) complexes with a tridentate pyridine-based N-heterocyclic carbene ligand: Synthesis, characterization, electrochemistry, photophysics, and computational studies

Sammual Yu Lut Leung, Elizabeth Suk Hang Lam, Wai Han Lam, Keith Man Chung Wong, Wing Tak Wong, Vivian Wing Wah Yam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)

Abstract

A new class of luminescent alkynylplatinum(II) complexes with a tridentate pyridine-based N-heterocyclic carbene (2,6-bis(1-butylimidazol-2-ylidenyl) pyridine) ligand, [PtII(C^N^C)(Cï£CR)][PF6], and their chloroplatinum(II) precursor complex, [PtII(C^N^C)Cl] [PF6], have been synthesized and characterized. One of the alkynylplatinum(II) complexes has also been structurally characterized by X-ray crystallography. The electrochemistry, electronic absorption and luminescence properties of the complexes have been studied. Nanosecond transient absorption (TA) spectroscopy has also been performed to probe the nature of the excited state. The origin of the absorption and emission properties has been supported by computational studies.
Original languageEnglish
Pages (from-to)10360-10369
Number of pages10
JournalChemistry - A European Journal
Volume19
Issue number31
DOIs
Publication statusPublished - 29 Jul 2013
Externally publishedYes

Keywords

  • alkynyl ligands
  • density functional calculations
  • N ligands
  • photoluminescence
  • platinum

ASJC Scopus subject areas

  • Chemistry(all)

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