Bulky Siloxyaluminum Alkyls as Models for Al_2Me_6-Treated Silica Gel Surfaces. Characterization of a Dimethylaniline-Stabilized Dimethylaluminum Cation

Olaf Wrobel; Frank Schaper; Hans H.Brintzinger

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Bulky Siloxyaluminum Alkyls as Models for Al_2Me_6-Treated Silica Gel Surfaces. Characterization of a Dimethylaniline-Stabilized Dimethylaluminum Cation

机译：作为Al_2Me_6处理硅胶表面模型的大体积硅氧铝烷基醇。二甲基苯胺稳定的二甲基铝阳离子的表征

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Reaction of a particularly bulky silanol, (2,4,6-Me_3C_6H_2)_3SiOH, with Al_2Me_6 gives, instead of the otherwise preferred unreactive binuclear siloxalanes with two siloxy bridges, a binuclear siloxalane with one siloxy and one methyl bridge, Me_2Al(mu-OSi(2,4,6-Me_3C_6H_2)_3)-(mu-Me)AlMe_2. This species reacts with zirconocene dichlorides under chloride/methyl exchange; with the cationizing reagent PhMe_2NH~+B(C_6F_5)_4~- it forms the B(C_6F_5)_4~- salt of the mononuclear cation AlMe_2(NPhMe_2)_2~+.

机译：一种特别庞大的硅烷醇（2,4,6-Me_3C_6H_2）_3SiOH与Al_2Me_6的反应产生了带有两个甲硅烷氧基桥的原本不优选的非反应性双核硅氧烷，而不是带有一个甲氧基和一个甲基桥的双核硅氧烷，Me_2Al（mu- OSi（2,4,6-Me_3C_6H_2）_3）-（mu-Me）AlMe_2。该物质在氯化物/甲基交换下与二茂锆反应。与阳离子化试剂PhMe_2NH〜+ B（C_6F_5）_4〜-形成单核阳离子AlMe_2（NPhMe_2）_2〜+的B（C_6F_5）_4〜盐。

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《Organometallics》 |2004年第4期|共6页
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Olaf Wrobel; Frank Schaper; Hans H.Brintzinger;
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1. Bulky Siloxyaluminum Alkyls as Models for Al_2Me_6-Treated Silica Gel Surfaces. Characterization of a Dimethylaniline-Stabilized Dimethylaluminum Cation [J] . Olaf Wrobel, Frank Schaper, Hans H.Brintzinger Organometallics . 2004,第4期

机译：作为Al_2Me_6处理硅胶表面模型的大体积硅氧铝烷基醇。二甲基苯胺稳定的二甲基铝阳离子的表征
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Bulky Siloxyaluminum Alkyls as Models for Al_2Me_6-Treated Silica Gel Surfaces. Characterization of a Dimethylaniline-Stabilized Dimethylaluminum Cation

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