Selective one-pot syntheses of mixed silicon-germanium heteroadamantane clusters

  • SixGey alloys are emerging materials for modern semiconductor technology. Well-defined model systems of the bulk structures aid in understanding their intrinsic characteristics. Three such model clusters have now been realized in the form of the SixGey heteroadamantanes [0], [1], and [2] through selective one-pot syntheses starting from Me2GeCl2, Si2Cl6, and [nBu4N]Cl. Compound [0] contains six GeMe2 and four SiSiCl3 vertices, whereas one and two of the GeMe2 groups are replaced by SiCl2 moieties in compounds [1] and [2], respectively. Chloride-ion-mediated rearrangement quantitatively converts [2] into [1] at room temperature and finally into [0] at 60 °C, which is not only remarkable in view of the rigidity of these cage structures but also sheds light on the assembly mechanism.

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Author:Benedikt Köstler, Michael BolteORCiD, Hans-Wolfram LernerORCiDGND, Matthias WagnerORCiD
Parent Title (English):Chemistry - a European journal
Place of publication:Weinheim
Document Type:Article
Date of Publication (online):2021/08/13
Date of first Publication:2021/08/13
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2021/11/16
Tag:SiGe alloys; cluster compounds; germanium; rearrangements; silicon
Page Number:4
First Page:14401
Last Page:14404
The authors are grateful to Evonik Operations GmbH, Rheinfel-
den (Germany), for the generous donation of Si2Cl6 and GeCl4.
Open Access funding enabled and organized by Projekt DEAL.
Institutes:Biochemie, Chemie und Pharmazie
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Licence (German):License LogoCreative Commons - Namensnennung-Nicht kommerziell - Keine Bearbeitung 4.0