Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 22, Pages 6272-6275Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201609100
Keywords
carbenes; density functional calculations; germanium; structure elucidation; X-ray diffraction
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Funding
- NSERC of Canada
- Canada Foundation for Innovation (CFI)
- American Chemical Society
- Alexander von Humboldt Foundation
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Two efficient methods are presented to install sigma- and p-electron-donating N-heterocyclic vinyl groups onto main-group elements (E): halosilane elimination and base-induced E-C bond formation. Placement of two NHC=CH- ligands (NHC = N-heterocyclic carbene) onto a GeII center affords a two-coordinate germylene, a heavy congener of the elusive divinyl carbenes. The p-donating ability of this vinylic ligand scaffold was further demonstrated by the synthesis of a three-coordinate germylium cation R3Ge+.
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