Che, CM

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Title Phosphorescent Plalladium Complexes with Long-Lived ExcitedStateAuthor(s) Che, CMCitation 28th International Conference on Photochemistry (ICP 2017),Strasbourg, France, 16-21 July 2017Issued Date 2017URL http://hdl.handle.net/10722/252089Rights This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.Session: Put session name here (Times New Roman 10)   Phosphorescent Palladium Complexes with Long-Lived Excited State  Chi-Ming Che 1  1 State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong,  Pokfulam Road, Hong Kong, P. R. China.  E-mail: cmche@hku.hk  Phosphorescent metal complexes have demonstrated tremendous applications in diverse areas such as in solar catalysis, luminescent cellular imaging, and photo-active functional materials. All these applications heavily rely on the lifetime and emission quantum yield of the electronic excited states.  In literature, examples of electronic excited states of metal complexes with lifetimes over 100 µs, high emission quantum yields and/or with open coordination sites are sparse. As metal ions would facilitate radiative decay via spin-orbit coupling, excited states having significant metal parentage such as metal-to-ligand charge transfer ones observed in platinum(II) and iridium(III) complexes usually undergo fast radiative decay than intraligand excited states. In this lecture, the photophysics, photochemistry and applications of a series of palladium(II) complexes supported by tetradentate [N^C^C^N] and [O^N^C^N] ligand systems will be discussed. These complexes display sky blue to red phosphorescence with emission quantum yields and lifetimes of up to 0.64 and 272 µs, respectively. The use of rigid tetradentate ligands can greatly suppress non-radiative decay arising from excited structural distortion. Some of these metal complexes demonstrate promising applications in materials science and photocatalysis.   Funding: Areas of Excellence Scheme, University Grants Committee (AoE/P-03/08), National Key Basic Research Program of China (No. 2013CB834802), and Hong Kong Research Grants Council (HKU 17300614)  References:  [1] P.-K. Chow, C. Ma, W.-P. To, G. S. M. Tong, S.-L. Lai, S. C. F. Kui, W.-M. Kwok, C.-M. Che, Angew. Chem. Int. Ed., 2013, 52, 11775 [2] P.-K. Chow, G. Cheng, G. S. M. Tong, C. Ma, W.-M. Kwok, W.-H. Ang, C. Y.-S. Chung, C. Yang, F. Wang, C.-M. Che, Chem. Sci. 2016, 7, 6083 Session: Plenary Plenary-101

Phosphorescent Plalladium Complexes with Long-Lived Excited State

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Phosphorescent Plalladium Complexes with Long-Lived Excited State

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