LiEC(SiMe3)3 (E = Se, Te) as a new donor of chalcogen atoms for the generation of binary [(RGe)E] cage compounds with
Tanja Kunz1, Orhan Şahin1, Claudio Schrenk1
1Chemistry Department, University Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany. andreas.schnepf@uni-tuebingen.de.
Abstract:
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.
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