Two novel terpyridine-based chromophores with donor-acceptor structural model containing modified triphenylamine moiety: Synthesis, crystal structures and two-photon absorption properties  

作　　者：LIU Jie ZHANG Qiong DING HongJuan ZHANG Jun TAN JingYun WANG ChuanKui WU JieYing LI ShengLi ZHOU HongPing YANG JiaXiang TIAN YuPeng 

机构地区：[1]Department of Chemistry,Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province,Anhui University [2]Department of Physics,Shandong Normal University [3]State Key Laboratory of Coordination Chemistry,Nanjing University

出　　处：《Science China Chemistry》2013年第9期1315-1324,共10页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China (21071001, 51142011, 21271004, 21201005 and 21271003);Ministry of Education Funded Projects Focus on returned overseas scholar;Program for New Century Excellent Talents in University (China)

摘　　要：Two novel terpyridine-based chromophores with D-A (D = donor, A = acceptor) structural model containing modified triphenylamine moiety (L1 and L2 ) have been conveniently synthesized via formylation and reduction in satisfactory yields, and fully characterized. The single crystals of them were obtained and determined by X-ray diffraction analysis. The relationships between structure and photophysical properties of the two chromophores were investigated both experimentally and theoretically. The measured maximum TPA cross-sections per molecular weight (δmax /MW) of the chromophores are 0.63 GM/(g mol) (L1) and 0.72 GM/(g mol) (L2), respectively, in DMF as a high polar solvent. The results indicate that the value of δmax/MW could be well tuned by the intramolecular charge transfer (ICT), which could be realized by introducing additional elecron-donor/acceptor groups.Two novel terpyridine-based chromophores with D-A （D = donor, A = acceptor） structural model containing modified triphenylamine moiety （L1 and L2 ） have been conveniently synthesized via formylation and reduction in satisfactory yields, and fully characterized. The single crystals of them were obtained and determined by X-ray diffraction analysis. The relationships between structure and photophysical properties of the two chromophores were investigated both experimentally and theoretically. The measured maximum TPA cross-sections per molecular weight （δmax /MW） of the chromophores are 0.63 GM/（g mol） （L1） and 0.72 GM/（g mol） （L2）, respectively, in DMF as a high polar solvent. The results indicate that the value of δmax/MW could be well tuned by the intramolecular charge transfer （ICT）, which could be realized by introducing additional elecron-donor/acceptor groups.

关 键 词：terpyridine derivatives photophysical properties structure-property relationships TD-DFT calculation two-photon-excited fluorescence 

分 类 号：O626[理学—有机化学]