文献类型：期刊文献

英文题名：Heteroleptic copper(I) photosensitizers with carbazole-substituted phenanthroline ligands: Synthesis, photophysical properties and application to photocatalytic H-2 generation

作者：Yu, Zhe-Jian[1];Chen, Hao[1];Lennox, Alastair J. J.[2];Yan, Li-Juan[3];Liu, Xue-Fen[4];Xu, Dan-Dan[1];Chen, Feng[1];Xu, Liang-Xuan[1];Li, Yang[1];Wu, Qing-An[1];Luo, Shu-Ping[1]

机构：[1]Zhejiang Univ Technol, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China;[2]Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England;[3]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[4]Hangzhou Normal Univ, Qiangjiang Coll, Hangzhou 310012, Zhejiang, Peoples R China

年份：2019

卷号：162

起止页码：771

外文期刊名：DYES AND PIGMENTS

收录：SCI-EXPANDED(收录号：WOS:000456226500090)、、WOS

基金：Financial support by the National Natural Science Foundation of China (No. 21376222), the Natural Science Foundation of Zhejiang Province (No. LY188060011) and the Royal Society (URF to AJJL) is gratefully acknowledged.

语种：英文

外文关键词：Photosensitizers; Water reduction; Hydrogen production

外文摘要：A series of novel 4,7-dicarbazol-1,10-phenanthroline bidentate N-ligands have been designed and synthesized, and applied in heteroleptic copper complexes [Cu(P boolean AND P)(N boolean AND N)](+) as photosensitizers (PS) for light-driven water reduction. In combination with a water reduction catalyst (WRC), Fe3CO12, photocatalytic performances up to 1036 turnover numbers (TON) were reached. This excellent performance can be attributed to the introduction of carbazole groups to the phenanthroline backbone, which can increase the fluorescence quantum yield, decrease the reduction potential of the copper complexes and switch the excited state quenching mechanism from reductive to oxidative. By means of DFT calculations, it has been established that the carbazole substituent contributes most significantly to the HOMO of these complexes.