Synthesis and Structure of a Heavier Congener of Biphenyl: 1,1′-Disila-4,4′-biphenyl
Synthesis and Structure of a Heavier Congener of Biphenyl: 1,1′-Disila-4,4′-biphenyl
复制标题
DOI：
10.1021/om901095w
复制
发表时间：
2010-02-22
期刊：
影响因子：
2.8
通讯作者：
Tokitoh, Norihiro
中科院分区：
文献类型：
--
作者：
Tanabe, Yusuke;Mizuhata, Yoshiyuki;Tokitoh, Norihiro
合成了1,1′-二硅氧烷-4,4′-联苯物种1，这是第一个直接连接两个硅芳环的分子，并通过光谱和x射线晶体学数据进行了表征。与tbt取代的硅苯相比，1的紫外可见光谱不仅红移，而且最长吸收最大值的吸光度增加了6倍，这表明通过单键连接两个芳环的共轭概念即使在硅芳族体系中也是适用的。
The 1,1'-disila-4,4'-biphenyl species 1, the first molecule bearing directly connected two silaaromatic rings, was synthesized and characterized by its spectroscopic and X-ray crystallographic data. The UV-vis spectrum of 1 showed not only a red shift but also a 6-fold increase in absorbance of the longest absorption maximum in comparison with those of Tbt-substituted silabenzene, indicating that the concept of conjugation through the single bond connecting two aromatic rings is applicable even in silaaromatic systems.