期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 9, 页码 3158-3161出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511019
关键词
carbenes; clusters; density functional calculations; pi acceptors; silicon
资金
- Deutsche Forschungsgemeinschaft [RO 224/64-1, FR 641/25-2, DI921/6-1]
Reduction of the neutral carbene tetrachlorosilane adduct (cAAC)SiCl4 (cAAC=cyclic alkyl(amino) carbene :C(CMe2)(2)(CH2)N(2,6-iPr(2)C(6)H(3)) with potassium graphite produces stable (cAAC)(3)Si-3, a carbene-stabilized triatomic silicon(0) molecule. The Si-Si bond lengths in (cAAC)(3)Si-3 are 2.399(8), 2.369(8) and 2.398(8)angstrom, which are in the range of Si-Si single bonds. Each trigonal pyramidal silicon atom of the triangular molecule (cAAC)(3)Si-3 possesses a lone pair of electrons. Its bonding, stability, and electron density distributions were studied by quantum chemical calculations.
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