To Wai-Pong, Tong Glenna So Ming, Cheung Chi-Wah, Yang Chen, Zhou Dongling, Che Chi-Ming
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China.
HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053, People's Republic of China.
Inorg Chem. 2017 May 1;56(9):5046-5059. doi: 10.1021/acs.inorgchem.7b00180. Epub 2017 Apr 13.
A series of luminescent cyclometalated gold(III) complexes having alkyls as auxiliary ligands has been prepared. The alkyl ligand was found to effectively increase the emission quantum yields and lifetimes of luminescent cyclometalated gold(III) complexes by circumventing the population of LLCT excited states that are found in complexes supported by arylacetylide ligands. These gold(III) alkyl complexes exhibit emission quantum yields and lifetimes of up to 0.40 and 180 μs, respectively, in solution at room temperature. The triplet emission color of these complexes is tunable from yellow to sky blue by modifying the cyclometalating ligand.
已制备出一系列以烷基作为辅助配体的发光环金属化金（III）配合物。发现烷基配体通过避免芳基乙炔配体支持的配合物中存在的LLCT激发态的占据，有效地提高了发光环金属化金（III）配合物的发射量子产率和寿命。这些金（III）烷基配合物在室温下的溶液中分别表现出高达0.40的发射量子产率和180 μs的寿命。通过修饰环金属化配体，这些配合物的三重态发射颜色可从黄色调至天蓝色。
