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将α,ω-二氯全甲基多硅烷相继与环戊二烯基钠、正丁基锂及四氯化锆作用,生成的全甲基多硅撑桥连二环戊二烯基二氯化锆(Me_2Si)_n(C_5H_4)_2 ZrCl_2(n=2,3)在碱性条件下被水解,生成标题化合物[(Me_2Si)_n(C_5H_4)ZrCl]_2O.用元素分析、~1HNMR和质谱表征了其结构,进而对两个化合物的单晶进行X射线结构分析,确证其分子结构.n=2的晶体属P2_1/C空间群,晶胞参数a=14.268(4),b=7.812(1),c=31.050(5)A;β=99.59°;Z=4.最终偏差因子R=0.039.n=3的晶体属C_2空间群,晶胞参数a=19.944(1),b=17.117(1),c=15.966(1)A;β=128.68°;Z=4.最终偏差因子R=0.033.最后讨论了硅桥对配合物分子结构及性质的影响.
The α, ω-dichloro-methyl-polysilanes were successively reacted with cyclopentadienyl sodium, n-butyllithium and zirconium tetrachloride to form the homopolymethylsilyl bridged dicyclopentadienyl dichloride Hydrolysis of zirconium (Me_2Si) _n (C_5H_4) _2 ZrCl_2 (n = 2,3) under basic conditions gave the title compound [(Me_2Si) _n (C_5H_4) ZrCl] _2O. Elemental analysis, 1HNMR and mass spectra X-ray structure analysis of single crystal of the two compounds confirms its molecular structure. The n = 2 crystal belongs to the P2_1 / C space group with unit cell parameters a = 14.268 (4), b = 7.812 (1 ), c = 31.050 (5) A; β = 99.59 °; Z = 4. The crystal with the final deviation factor R = 0.039.n = 3 belongs to the C_2 space group with unit cell parameters a = 19.944 (1) and b = 17.117 1), c = 15.966 (1) A, β = 128.68 °, Z = 4. The final deviation factor is R = 0.033. Finally, the effect of silicon bridge on the molecular structure and properties of the complexes was discussed.