Tetra-phthalimide end-fused bifluorenylidene: Synthesis and characterization  

作　　者：Debin Xia Fangyuan Zhang Zhigang Liu Linghao Meng Ruiqing Fan Yulin Yang 

机构地区：[1]MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology

出　　处：《Chinese Chemical Letters》2019年第1期259-262,共4页中国化学快报（英文版）

基　　金：supported by National Natural Science Foundation of China (No. 51603055)

摘　　要：A novel electron acceptor, namely, tetra-phthalimide end-fused bifluorenylidene(3 D-imide) was designed and synthesized. In comparison to its framework analogue 12,12'-bidibenzo[b,h]fluorenylidene(BF-3), the electron withdrawing capability and optical absorption were strengthened and enlarged,respectively. Moreover, photoluminescence quenching experiments were carried out, which confirmed 3D-imide could be a good candidate for nonfullene organic photovoltaics. Finally, we gained more insight into its electronic properties through density functional theory calculation.A novel electron acceptor, namely, tetra-phthalimide end-fused bifluorenylidene(3 D-imide) was designed and synthesized. In comparison to its framework analogue 12,12'-bidibenzo[b,h]fluorenylidene(BF-3), the electron withdrawing capability and optical absorption were strengthened and enlarged,respectively. Moreover, photoluminescence quenching experiments were carried out, which confirmed 3D-imide could be a good candidate for nonfullene organic photovoltaics. Finally, we gained more insight into its electronic properties through density functional theory calculation.

关 键 词：Bifluorenylidene POLYCYCLES Electron ACCEPTOR TWISTING Three dimensional 

分 类 号：O6[理学—化学]