Tp*Cu(i)–CN–SiL2–NC–Cu(i)Tp* – a hexacoordinate Si-complex as connector for redox active metals via π-conjugated ligands

Abstract

Hexacoordinate silicon complexes L₂SiX₂ (L = a 2-benzoylpyrrol-1-yl derivative, X = CN, NCS) were synthesized from L₂SiCl₂ by ligand exchange with trimethylsilyl reagents Me₃SiX. In the presence of [Tp*CuNCMe] and Me₃SiCN the silicon complex L₂Si(NC(CuTp*))₂ was obtained, which contains a linear Cu–CN–Si–NC–Cu unit (Tp* = hydrotris(3,5-dimethylpyrazolyl)borato).