Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 8, Pages 2907-2910Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511037
Keywords
anions; cluster compounds; main-group elements; subvalent compounds; synthesis design
Categories
Funding
- Deutsche Forschungsgemeinschaft [DFG SCHE906/4-1]
- Alfried Krupp von Bohlen und Halbach-Foundation
- COST Action [CM1302]
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The characteristic features of bulk silicon surfaces are echoed in the related partially substituted-and thus unsaturated-neutral silicon clusters (siliconoids). The incorporation of siliconoids into more-extended frameworks is promising owing to their unique electronic features, but further developments in this regard are limited by the notable absence of functionalized siliconoid derivatives until now. Herein we report the isolation and full characterization of the lithium salt of an anionic R5Si6-siliconoid, thus providing the missing link between silicon-based Zintl anions and siliconoid clusters. Proof-of-principle for the high potential of this species for the efficient transfer of the intact unsaturated R5Si6 moiety is demonstrated by clean reactions with representative electrophiles of Groups 13, 14, and 15.
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