Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 2, Pages 886-889Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja210669n
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Funding
- Ministry of Education, Science, Sports, and Culture of Japan [19105001, 23108701, 23655027]
- JSPS
- Grants-in-Aid for Scientific Research [19105001, 11F01338, 23655027, 24109006] Funding Source: KAKEN
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Reaction of the disilyne-NHC complex 1 [RLSi=SiR: (R = (SiPr)-Pr-i[CH(SiMe3)(2)](2), L = NHC)] with MeOTf gave the cation 2 [RLSi=SiRMe](+), which is the first example of a base-stabilized heavy group 14 element analogue with vinyl cation character. Cation 2 has been fully characterized by multinuclear NMR spectroscopy and X-ray diffraction analysis. The molecular structure indicates that there are significant contributions from the NHC-stabilized cationic resonance structure 2A, the disilene-like structure 2B, and even some contribution from the silylene-like structure 2C.
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