Silicon‐Bridged Homocyclopentadienides: Metal‐Assisted Facile Ring Expansion of Cyclopentadienide by Transient Imino(Metallophosphino)Silylenes
Abstract
ABSTRACT In this study, we report the aromatic C─C bond cleavage of cyclopentadienide by transient imino(metallophosphino)silylenes through the reaction of silylene equivalents with CpCo(CO) 2 , enabling the transformation of cyclopentadienides into silicon‐bridged homocyclopentadienides. The presence of homoaromaticity in these species is substantiated by NICS and ACID analyses. Experimental observations, in conjunction with detailed quantum chemical calculations, support a mechanistic scenario that metal‐assisted, silylene‐mediated cyclopentadienide activation proceeds via a formally Büchner ring‐expansion pathway.
Article Details
Authors (5)
Huaiyuan Zhu
Xufang Liu
Shicheng Dong
State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
Jun Zhu
Wuxi EliTe Solar Co., Wuxi, China.
Shigeyoshi Inoue
TUM School of Natural Sciences, Department of Chemistry, Institute of Silicon Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, Garching bei München 85748, Germany