74915-05-2Relevant articles and documents
REACTIVITY MODES OF BRIDGED BIMETALLIC 5-C5H5)Fe(CO)>2-μ-dppe WITH ELECTROPHILES. PREPARATION AND REACTIONS OF BIMETALLIC HYDRIDE COMPLEXES
LaCroce, S. J.,Menard, K. P.,Cutler, A. R.
, p. C79 - C83 (1980)
The complex 5-C5H5)Fe(CO)>2-μ-dppe (dppe = ethane-1,2-bisdiphenylphosphide) (I) reacts with electrophiles through a μ-CO and forms Lewis acid O-adducts with alkylating reagents (giving cationic μ2-alkoxycarbyne compounds) or with alkylaluminum compounds.Treatment of I with acid affords a stable μ2-hydride salt (IV), 2(μ2-H)(μ2-dppe)+, which serves as an intermediate in the stepwise hydrogenation (reversibly) of I to a bridged bimetallic dihydride, 2-μ2-dppe.This dihydride serves as a hydride donor, regenerating IV, towards Ph3C+ o r CpFe(CO)2(η2-CH2=CH2)+ hydride acceptors.The necessity of the μ2-dppe as a mechanical linkage in facilitating some bimetallic reactions is also established.