Intramolecular charge transfer and exciplex formation in anthracene bichromophoric compounds | |
Wang, H; Zhang, BW; Cao, Y | |
刊名 | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
![]() |
1995-12-06 | |
卷号 | 92期号:1-2页码:29-34 |
关键词 | Intramolecular Charge Transfer Exciplex Formation Anthracene Bichromophoric Compounds |
ISSN号 | 1010-6030 |
英文摘要 | A binary compound containing strong electron donor and acceptor groups, (N,N-dimethylanilino)-CH2-9-cyanoanthracene (II), was synthesized, and its photophysical behaviour was studied. Intramolecular exciplex emission was observed in non-polar and moderately polar solvents, but not in polar solvents. Exciplex formation in non-polar and moderately polar solvents accounts for the exothermic electron transfer reaction and/or the efficient coupling of the amine lone pair with 9-cyanoanthracene pi orbitals; in polar solvents, the molecular structure corresponds to a solvent-separated radical ion pair formed by intermolecular electron transfer, where the energy is dissipated via back electron transfer (BET) without fluorescence emission. A new, blue-shifted emission at 510 nm appears in the region of the local emission band for compound II at 77 K, which may originate from a ground state, charge transfer (CT) conformer. The dependence of exciplex formation on the solvent and temperature is discussed by comparison with the compound (N,N-dimethylanilino)-CH2-anthracene (I), and a simplified energy diagram showing intramolecular charge transfer and exciplex formation in compounds I and II is described. |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA LAUSANNE |
WOS记录号 | WOS:A1995TK77100007 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/44193] ![]() |
专题 | 中国科学院化学研究所 |
作者单位 | CHINESE ACAD SCI,INST PHOTOG CHEM,PHOTOCHEM LAB,BEIJING 100101,PEOPLES R CHINA |
推荐引用方式 GB/T 7714 | Wang, H,Zhang, BW,Cao, Y. Intramolecular charge transfer and exciplex formation in anthracene bichromophoric compounds[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,1995,92(1-2):29-34. |
APA | Wang, H,Zhang, BW,&Cao, Y.(1995).Intramolecular charge transfer and exciplex formation in anthracene bichromophoric compounds.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,92(1-2),29-34. |
MLA | Wang, H,et al."Intramolecular charge transfer and exciplex formation in anthracene bichromophoric compounds".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 92.1-2(1995):29-34. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论