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1,3-二氯四甲基二硅氧烷相继与环戊二烯基钠、钠砂及 MCl_4反应,制得标题化合物:O(SiMe_2)_2(C_5H_4)_2MCl_2(1,M=Ti;2,M=Zr;3,M=Hf).考察了1的卤素置换反应:1与(NH_4)_2SiF_6作用生成相应的二氟化物4,4与氢溴酸作用生成相应的二溴化物5.经元素分析,UV,~1H(~(13)C)NMR 和 MS 表征了它们的结构,并利用 X 射线衍射法测定了2和3的晶体和分子结构.化合物1,2和3的有关结构数据比较表明,由于中心金属的不同而引起其键长和键角的差异与其碳桥类似物(CH_2)_3(C_5H_4)_2MCl_2的情况相似.
1,3-dichlorotetramethyldisiloxane was successively reacted with cyclopentadienyl sodium, sodium silicate and MCl_4 to obtain the title compound: O (SiMe_2) _2 (C_5H_4) _2MCl_2 (1, M = Ti; 2 , M = Zr; 3, M = Hf). Investigate a halogen replacement reaction 1: 1 and (NH_4) _2SiF_6 the role of the corresponding formation of difluoride 4,4 and hydrobromic acid to generate the corresponding dibromide 5. Their structures were characterized by elemental analysis, UV, ~ 1H (~ (13) C) NMR and MS, and the crystal and molecular structures of 2 and 3 were determined by X-ray diffractometry.The related structural data of compounds 1, 2 and 3 The comparison shows that the difference of bond length and bond angle due to the difference of center metal is similar to that of carbon bridge analogue (CH 2) _3 (C_5H_4) _2MCl_2.