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). This journal is