Photoluminescence, Redox Properties, and Electrogenerated Chemiluminescence of Twisted 9,9′-Bianthryls
作者:Palani Natarajan、Michael Schmittel
DOI:10.1021/jo401785c
日期:2013.10.18
study the dual emission (from locally excited and charge transfer states) of sterically crowded 9,9′-bianthryl (BAHO) and its 10,10′-disubstituted derivatives, namely, 10,10′-dibromo-9,9′-bianthryl (BABR), 10,10′-bis(p-tolylethynyl)-9,9′-bianthryl (BAET), and 10,10′-bis(N,N-diphenyl-4-anilino)-9,9′-bianthryl (BATA) in detail, we probed their photophysical, redox, and electrogenerated chemiluminescence
研究空间拥挤的9,9'-二蒽基(BAHO)及其10,10'-di取代的衍生物(即10,10'-dibromo- 9,9'-)的双重发射(来自局部激发态和电荷转移态)联蒽基(BABR),10,10'-双(对甲苯基乙炔基)-9,9'-联蒽基(BAET)和10,10'-双(N,N-二苯基-4-苯胺基)-9,9' -bianthryl(BATA),我们详细研究了它们的光物理,氧化还原和电致化学发光(ECL)反应。在PL中注意到所有分子的双重发射,而在ECL中仅在各种实验条件下观察到了电荷转移发射。非极性溶剂中的PL受添加的支持电解质的影响很大,与ECL一样,仅产生电荷转移发射。事实证明,ECL的稳定性在很大程度上取决于取代基的性质,三芳基胺和溴基团在超过60个循环中赋予恒定的ECL强度。