A [CoSiH₂] Silylene Synthon Provides Modular Access to Homo- and Heterobimetallic [Co═Si═M] (M = Co, Fe) Silicide Complexes.

ABSTRACT: Base-stabilized [BP₃^iPr](H)₂CoSiH₂(DMAP) (1, [BP₃^iPr] = PhB(CH₂PⁱPr₂)₃^-; DMAP = 4-dimethylaminopyridine) is a rare instance of a synthon for the simplest "parent" silylene complex (LM═SiH₂). Complex 1 was accessed in high yields via double Si-H bond activation in SiH₄ by [BP₃^iPr]Co(DMAP), and in solution, it undergoes rapid exchange between bound and free DMAP by an associative mechanism (as determined by variable-temperature ¹H NMR dynamic studies). The DMAP ligand of 1 is readily displaced by metal-based fragments that bind silicon and cleave the Si-H bonds of the Si

SUBMITTER: Handford RC 

PROVIDER: S-EPMC10655182 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature