Synthesis and Characterization of the Ferrio-Substituted Silicon(II) Compound Me₅C₅(CO)₂FeSiC₅Me₅

Abstract

Reaction of the (pentamethylcyclopentadienyl)silicon cation with the (pentamethylcyclopentadienyl)dicarbonylferrate anion leads to the formation of the crystalline, thermolabile silicon(II) compound [(η 5 -pentamethylcyclopentadienyl)dicarbonylferrio](η 3 -pentamethylcyclopentadienyl)silicon. The singlet−triplet energy difference Δ E ST is calculated to be 25.4 kcal/mol.