| SYNTHESIS AND STRUCTURE OF μ-O-BIS-[(PERMETHYL POLYSILANDIYL) DICYCLO-PENTADIENYL CHLOROZIRCONIUM] |
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| 引用本文： | 周秀中,王瑛,徐善生,王宏根,王如骥.SYNTHESIS AND STRUCTURE OF μ-O-BIS-[(PERMETHYL POLYSILANDIYL) DICYCLO-PENTADIENYL CHLOROZIRCONIUM][J].中国科学B辑(英文版),1991(9). |
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| 作者姓名： | 周秀中 王瑛 徐善生 王宏根 王如骥 |
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| 作者单位： | Department of Chemistry，Nankai University，Department of Chemistry，Nankai University，Department of Chemistry，Nankai University，Central Laboratory，Nankai University，Central Laboratory，Nankai University |
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| 摘 要： | α,ω-dichloropermethyl polysilane reacted sequentially with cyclopentadienyl sodium, n-butyl lithium and zirconium tetrachloride to produce sila-bridged dicyclopentadienyl zirconium dichlorides, (Me2Si)n(C5H4)2ZrCl2, which were hydrolyzed under basic conditions to yield the title compounds, (Me2Si)n(C5H4)2ZrCl]2O. Their structures were characterized by elemental analyses, 1HNMR and MS. Furthermore the crystal structures of two complexes were determined by X-ray diffraction method. The crystal (n = 2) is monoclinic, space group P21/c with a= 14.268(4), b = 7.812(1), c = 31.050(5)A; β = 99.59°; Z = 4; the factor R = 0.039. The crystal (n=3) is monoclinic, space group C2 with a = 19.944(1), b = 17.117(1), c = 15.966 (1)A; β= 128.68°; Z= 4; the factor R= 0.033. The effect of sila-bridge on the structure and properties of these complexes are discussed.
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| 关 键 词： | α ω-dichloropermethyl polysilane X-ray diffraction method sila-bridge. |
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