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Updated: Jun 13, 2025

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Unprecedented bis(silylene)-supported silylone-metal complexes with Si0→CuI, Si0→NiI, and Si0→NiII dative bonds
Changkai Shan1, Chenshu Dai2, Shenglai Yao1
1Department of chemistry, Metalorganics and Inorganic Meterials, Technische Universität Belrin, Strasse des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany. shenglai.yao@tu-berlin.de.
Abstract:
The first silylone-3d-metal complexes, LSiCu(NacNacM) (2) [L = 1,2-(RSi)2-1,2-C2B10H10, R = PhC(NtBu)2; NacNacM = HC(CMeNMes)2, Mes = 2,4,6-Me3-C6H2] and LSiNi(NacNacD) (3) [NacNacD = HC(CMeNDipp)2, Dipp = 2,6-iPr2-C6H3], are reported, resulting from the reaction of the strongly σ-donating and chelating bis(silylenyl)-ortho-carborane silylone LSi0 with [(NacNacMCu)2benzene] and [(NacNacDNi)2toluene], respectively. Density Functional Theory (DFT) analyses reveal that complex 2 features a Si0→CuI dative bond, while 3 exhibits a Si0→NiI bond. Oxidation of the Si0-NiI species 3 with [Cp2Fe]+ occurs at the Ni site to form the [3]+ cation with a Si0→NiII coordination.
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