Kunz Tanja, Şahin Orhan, Schrenk Claudio, Schnepf Andreas
Chemistry Department, University Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany.
Dalton Trans. 2021 Feb 23;50(7):2663-2670. doi: 10.1039/d0dt04280c.
The reaction of GeCl2·dioxane with LiEC(SiMe3)3 (E = Se, Te) shows unexpected products different from those of the previously presented reaction system GeCl2·dioxane/LiSC(SiMe3)3. Here, LiEC(SiMe3)3 (E = Se, Te) acts as a chalcogen atom donor and simultaneously as a substituent to give cage compounds of the composition [(RxGey)Ez] with unique structural features of the Ge/E cores. The molecular structures are presented together with a possible formation mechanism of the selenium/germanium cage compound [{((SiMe3)3CGe)2GeSe4}2(μ2-Se)2] supported by quantum chemical calculations.
二氯二氧六环合锗（GeCl2·dioxane）与LiEC(SiMe3)3（E = Se、Te）的反应产生了与之前所展示的反应体系GeCl2·dioxane/LiSC(SiMe3)3不同的意外产物。在此，LiEC(SiMe3)3（E = Se、Te）作为硫族原子供体，同时作为取代基，生成了具有独特Ge/E核结构特征的组成为[(RxGey)Ez]的笼状化合物。文中给出了分子结构以及通过量子化学计算支持的硒/锗笼状化合物[{((SiMe3)3CGe)2GeSe4}2(μ2-Se)2]的可能形成机制。
