Synthesis and Properties of Novel Germole-Containing Polymers by Reaction of Bis(cyclopentadienyl)titanacyclopentadiene-Containing Polymer with Germanium Tetrachloride
Synthesis and Properties of Novel Germole-Containing Polymers by Reaction of Bis(cyclopentadienyl)titanacyclopentadiene-Containing Polymer with Germanium Tetrachloride
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DOI：
10.1007/s00289-008-0990-y
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发表时间：
2008-08
期刊：
影响因子：
3.2
通讯作者：
Wei-min Zhou;I. Tomita
中科院分区：
文献类型：
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作者：
Wei-min Zhou;I. Tomita
介绍了新型含胚芽聚合物的合成及性能。以1，4-双(1-己炔基)苯与二氯化钛和正丁基锂(2当量)原位生成的低价双(环戊二烯)钛(II)络合物为原料，合成了主链上含有双(环戊二烯)钛环戊二烯单元的聚合物。得到的有机钛聚合物与GeCl4反应生成含1，1-二氯锗的聚合物，再与甲基锂反应得到含1，1-二甲基锗的聚合物。通过UV-Vis光谱和循环伏安分析研究了1，1-二甲基胚芽聚合物的光学和电化学性质，推测该聚合物具有较低的LUMO能级。
The synthesis and properties of novel germole-containing polymers are described. A polymer possessing bis(cyclopentadienyl)titanacyclopentadiene unit in the main chain was prepared by the polymerization of 1,4-bis(1-hexynyl)benzene and a low-valent bis(cyclopentadienyl)titanium(II) complex, generated in situ from bis(cyclopentadienyl)titanium(IV) dichloride and n-butyllithium (2 equiv). The organotitanium polymer thus obtained was converted into a 1,1-dichlorogermole-containing polymer by the reaction with GeCl4, and its further reaction with methyllithium gave a 1,1-dimethylgermole-containing polymer. Optical and electrochemical properties of the resulting 1,1-dimethylgermole-containing polymer were studied by the UV-vis spectra and the cyclic voltammetric analyses, from which the germole-containing polymer was supposed to have a low-lying LUMO level.