Tokoro Yuichiro, Ohtsuka Nobuhiko, Fukuzawa Shin-Ichi, Oyama Toshiyuki
Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University 79-5 Tokiwadai Hodogaya-ku, Yokohama 240-8501 Japan
Department of Applied Chemistry, Institute of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan.
RSC Adv. 2018 Jul 13;8(44):25177-25180. doi: 10.1039/c8ra05293j. eCollection 2018 Jul 9.
Ruthenium-catalyzed dimerization of 9-anthrylarylsilanes afforded air-stable V-shaped bisanthracenes bridged by a 7,8-disilabicyclo[3.3.0]octadiene moiety. The intra- and intermolecular proximity of the anthracene moieties were determined by single-crystal X-ray analysis. Absorption and emission maxima of the disilabicyclo[3.3.0]octadienyl-bridged bisanthracenes in the solution state were observed at longer wavelengths than those of 9-anthryldimethylsilane and bis(9-anthryl)dimethylsilane. The V-shaped bisacenes in the solid state showed excimer emissions with moderate quantum yields.
钌催化的9-蒽基芳基硅烷二聚反应得到了由7,8-二硅杂双环[3.3.0]辛二烯部分桥连的空气稳定的V形双蒽。蒽部分的分子内和分子间接近度通过单晶X射线分析确定。在溶液状态下，二硅杂双环[3.3.0]辛二烯基桥连的双蒽的吸收和发射最大值出现在比9-蒽基二甲基硅烷和双(9-蒽基)二甲基硅烷更长的波长处。固态的V形双并苯显示出具有适度量子产率的准分子发射。
