双(9-芴基)四甲基二硅氧烷的合成和晶体结构

SYNTHESIS AND CRYSTAL STRUCTURE OF BIS(9-FLUORENYL)TETRAMETHYLDISILOXANE

通过一氯二甲基芴硅烷水解制备了双 (9-芴基 )四甲基二硅氧烷 ,测定了其熔点 ,1HNMR ,并用X -射线衍射法测定了结构 ,晶体属单斜晶系 ,空间群P2 1/n,晶胞参数a =9.2 82 (2 ) ,b=19.5 43(4) ,c =14 .70 3(3) ,β =10 4 .89(2 )° ,V =12 77.2 (6 ) 3,Dc =1.2 0 3g/cm3,Z =2 ,μ(Mokα) =1.5 9cm- 1,F(0 0 0 ) =4 92 ,I >3σ(I)的可观察衍射点 182 2个 ,最终偏离因子R =0 .0 4 7,Rw =0 .0 6 3.

The title compound C 30 H 30 Si 2O was synthesized. The crystal belongs to the monoclinic system, space group P2 1/n . with cell parameters: a=9.282(2), b=19.543(4), C=14.703(3)?,β=104.89(2), V= 1277.2 (6)? 3, Z=2, Dc=1.203g/cm 3,μ(Mokα)=1.59cm -1 , F(000)=492. Final R and Rw are 0.047 and 0.063, respectively, for 1822observed reflections.