Strongly Luminescent Gold(III) Complexes with Long-Lived Excited States: High Emission Quantum Yields, Energy Up-Conversion, and Nonlinear Optical Properties†
Dr. Wai-Pong To
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorKaai Tung Chan
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Glenna So Ming Tong
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Chensheng Ma
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Wai-Ming Kwok
Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China)
Search for more papers by this authorDr. Xiangguo Guan
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Kam-Hung Low
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorCorresponding Author
Prof. Dr. Chi-Ming Che
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053 (China)
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)Search for more papers by this authorDr. Wai-Pong To
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorKaai Tung Chan
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Glenna So Ming Tong
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Chensheng Ma
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Wai-Ming Kwok
Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China)
Search for more papers by this authorDr. Xiangguo Guan
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorDr. Kam-Hung Low
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
Search for more papers by this authorCorresponding Author
Prof. Dr. Chi-Ming Che
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)
HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053 (China)
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong (China)Search for more papers by this authorThis work was supported by the Area of Excellence Scheme (grant number AoE/P-03/08), the National Key Basic Research Program of China (grant number 2013CB834802) and the CAS-Croucher Foundation Funding Scheme for Joint Laboratories, and in part using the HKU Information Technology Services research computing facilities supported by the Hong Kong UGC Special Equipment Grant (SEG HKU09).
Graphical Abstract
Photochemistry: A series of emissive gold(III) complexes with fluorene-containing cyclometalating ligands exhibits strong phosphorescence and long-lived excited states with emission quantum yields and lifetimes up to 58 % and 305 μs, respectively. These complexes can sensitize energy up-conversion of 9,10-diphenylanthracene (DPA; see picture) and display rich two-photon absorption properties (TPA; TTA=triplet–triplet annihilation).
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