Novel π-complexes of divalent silicon: mixed substituted neutral sandwich compounds and the half-sandwich cation (ⁱPr₅C₅)Si⁺

Abstract

The pentamethylcyclopentadienylsilicon(II) cation, Me5C5Si+, opens up access to novel silicocene derivatives; the penta-iso-propylcyclopentadienylsilicon(II) cation, iPr5C5Si+, is obtained by reaction of the mixed silicocene (iPr5C5)(Me5C5)Si with H(OEt2)2+ Al[OC(CF3)3]4-.