(<i>Z</i>)-1,2-Di(1-pyrenyl)disilene: Synthesis, Structure, and Intramolecular Charge-Transfer Emission
作者:Megumi Kobayashi、Naoki Hayakawa、Tsukasa Matsuo、Baolin Li、Takeo Fukunaga、Daisuke Hashizume、Hiroyuki Fueno、Kazuyoshi Tanaka、Kohei Tamao
DOI:10.1021/jacs.5b11970
日期:2016.1.27
(Z)-1,2-Di(1-pyrenyl)disilene containing bulky 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) groups has been obtained as purple crystals by the reductive coupling reaction of the corresponding dibromosilane with lithium naphthalenide. An X-ray crystallographic analysis revealed an Eind- and pyrenyl-meshed molecular gear around the disilene core adopting the Z configuration, in which the two pyrenyl
(Z)-1,2-Di(1-pyrenyl)disilene 含有庞大的 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) 基团已获得如下通过相应的二溴硅烷与萘化锂的还原偶联反应生成紫色晶体。X 射线晶体学分析显示,在采用 Z 构型的二硅烯核周围有 Eind 和芘基啮合的分子齿轮,其中两个芘基通过 π-π 堆积在分子内相互作用,中心之间的距离为 3.635 Å。两个芘环。二硅烷 π 系统在室温下表现出 π(Si-Si) → π*(芘) 分子内电荷转移 (ICT) 荧光,其波长取决于溶剂极性。包括激发态计算在内的计算研究在理论上支持光物理特性。