Luminescent Cyclometalated Alkynylplatinum(II) Complexes with a Tridentate Pyridine‐Based N‐Heterocyclic Carbene Ligand: Synthesis,Characterization, Electrochemistry,Photophysics, and Computational Studies |
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| Authors: | Sammual Yu‐Lut Leung Elizabeth Suk‐Hang Lam Dr Wai Han Lam Dr Keith Man‐Chung Wong Prof Dr Wing‐Tak Wong Prof Dr Vivian Wing‐Wah Yam |
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| Institution: | 1. Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (P. R. China), Fax: (+852)2857‐1586;2. Current address: Department of Chemistry, South University of Science and Technology of China, 1088 Xueyuan Blvd., Shenzhen (P. R. China) |
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| 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)(C?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. |
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| Keywords: | alkynyl ligands density functional calculations N ligands photoluminescence platinum |
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