摘要
以1,2-二溴苯为起始原料,通过偶联反应得到55,’-螺硅芴。在氯仿/石油醚的混合溶剂中通过缓慢挥发得到无色的块状晶体。用Bruker P4四圆衍射仪对晶体结构进行鉴定,用SHELXL-97程序对晶体结构进行解析。晶体数据为:C24 H16 Si,Mr=332.46,晶体属于四方晶系,P41 212空间群。晶胞参数:a=8.615(5),b=8.615(5)c,=24.079(5),α=90.000(5)°,β=90.000(5)°,γ=90.000(5)°,V=1787.1(15)3,Z=4,Dc=1.236 g/cm3,F(000)=696,μ(MoKa)=0.133 mm-1。偏差因子R=0.0384,ωR=0.0822。结果表明整个结构以硅为中心形成Z字形的正交三维空间对称结构,此类结构,可以有效降低材料发光的淬灭,提高量子产率。其衍生物在非线性光学、电致发光及立体化学方面有着潜在的发展前景。
The title compound 5,5ˊ-spirobi（dibenzosilole） was synthesized by the coupled reaction with o-dibromobenzene as a main staring material at rigorous condition.Its crystal structure was determined by a four-circle diffractometer.The crystal data：C24H16Si,Mr=332.46,tetragonal,space group P41 212,a=8.615（5） ,b=8.615（5）,c=24.079（5）,α=90.000（5） °,β=90.000（5）°,γ=90.000（5）°,V=1787.1（15）3,Z=4,Dc=1.236 g/cm3,F（000）=696,μ（MoKa）=0.133 mm-1.The final R =0.0384 and wR=0.0822.The results show that the molecule is approximatively an orthogonal three-dimensional space with silicon atom as the center.The kind of materials can reduce the ratio of fluorescence quenching and improve the fluorescence quantum yield.The molecular derivatives will have a potential development prospect in the fields of nonlinear optics,electroluminescent materials and the domain of stereochemical.
关键词
5
5’-螺硅芴
偶联反应
晶体结构
正交
5
5′-spirobi（dibenzosilole）
coupled reaction
crystal structure
orthogonal
