Intramolecular charge transfer induced emission from triphenylamine-o-carborane dyads

被引：33
|
作者：
Wan, Yi [1 ]
Li, Junfeng [1 ]
Peng, Xuelei [1 ]
Huang, Chao [1 ]
Qi, Qi [2 ]
Lai, Wen-Yong [1 ,2 ,3 ]
Huang, Wei [1 ,3 ]
机构：
[1] Nanjing Univ Posts & Telecommun, KLOEID, IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China
[3] Nanjing Tech Univ NanjingTech, KLOFE, IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
来源：
RSC ADVANCES | 2017年 / 7卷 / 56期
基金：
中国国家自然科学基金;
关键词：
AGGREGATION-INDUCED EMISSION; CYCLOMETALATED IRIDIUM COMPLEXES; STRUCTURAL-CHARACTERIZATION; PHOSPHORESCENCE EFFICIENCY; WHITE ELECTROLUMINESCENCE; PHOTOPHYSICAL PROPERTIES; DRUG DISCOVERY; THIN-FILM; LUMINESCENCE; SYSTEMS;
D O I：
10.1039/c7ra06237k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two novel triphenylamine-o-carborane dyads with donor-acceptor architectures were designed and synthesized. The photophysical properties were thoroughly investigated. The results demonstrated that triphenylamine-o-carborane dyads presented locally excited (LE) emission and twisted intramolecular charge transfer (TICT) induced emission in various polar solvents, in which LE emission was not dependent on the solvent polarities and TICT emission was consistent with the solvent polarities. The solvent-dependent TICT emission with a large bathochromic shift exhibited a dramatic decrease in emissive efficiency with increasing the solvent polarity. More importantly, the triphenylamine-ocarborane dyads in solid states exhibited highly efficient ICT emissions, in which the ICT characteristics were confirmed by the experimental data and the density function theory (DFT) calculation results.
引用
收藏
页码：35543 / 35548
页数：6
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