Isolation and Versatile Derivatization of an Unsaturated Anionic Silicon Cluster (Siliconoid)

Angewandte Chemie
Philipp WillmesDavid Scheschkewitz

Abstract

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 R5 Si6 -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 R5 Si6 moiety is demonstrated by clean reactions with representative electrophiles of Groups 13, 14, and 15.

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Citations

Mar 9, 2017·Angewandte Chemie·Yoshiyuki MizuhataNorihiro Tokitoh
Feb 22, 2018·Chemistry : a European Journal·Bastian WeinertStefanie Dehnen
Apr 21, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Yannic Heider, David Scheschkewitz
Sep 25, 2017·Chemistry : a European Journal·Eric A MarroRebekka S Klausen
Apr 18, 2018·Chemistry : a European Journal·Yosuke Sumiya, Satoshi Maeda
Jan 12, 2019·Angewandte Chemie·Kinga I LeszczyńskaDavid Scheschkewitz
Aug 7, 2019·Chemical Communications : Chem Comm·Lukas KlemmerDavid Scheschkewitz
Feb 25, 2020·Angewandte Chemie·Nadine E PoitiersDavid Scheschkewitz
May 15, 2020·Angewandte Chemie·Cem B YildizDavid Scheschkewitz
Dec 2, 2017·Chemistry : a European Journal·Andreas Rammo, David Scheschkewitz
Nov 22, 2017·Chemical Communications : Chem Comm·Felix S Geitner, Thomas F Fässler
May 7, 2019·Chemical Science·Yannic HeiderDavid Scheschkewitz
Sep 3, 2020·Chemical Science·Jan KeuterFelicitas Lips
Oct 17, 2017·Chemical Communications : Chem Comm·K MayerT F Fässler
Jul 24, 2020·Chemistry : a European Journal·Nadine E PoitiersDavid Scheschkewitz
Oct 3, 2020·Chemistry, an Asian Journal·Abhishek Agarwal, Shubhankar Kumar Bose
Jun 24, 2021·Chemical Reviews·Yannic Heider, David Scheschkewitz
Jul 14, 2021·Journal of the American Chemical Society·Marcel BambergMatthias Wagner
Aug 10, 2021·Chemical Society Reviews·Kei Ota, Rei Kinjo
Nov 16, 2019·Journal of the American Chemical Society·Yannic HeiderDavid Scheschkewitz

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Methods Mentioned

BETA
NMR
X‐ray

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