The reaction of C2H4 and β-SiH containing azasilazirconacycle Cp2Zrκ2-N(SiHMe2)SiHMeCH2} (3), formed via a γ-abstraction reaction of Cp2ZrN(SiHMe2)2}H (1), follows an unusual pathway in which a rare Ï-bond metathesis reaction of ethylene generates a vinyl intermediate. That species undergoes a β-hydrogen abstraction under the reaction conditions to form a zirconium silanimine ethylene adduct en route to the metallacyclopentane product.
Liquid precursors for formation of materials containing alkali metals
申请人:President and Fellows of Harvard College
公开号:US06994800B1
公开(公告)日:2006-02-07
Volatile liquid precursors are provided for use in the formation of alkali metal-containing materials. The compound includes an alkali metal and an amide ligand and is a liquid at a temperature of less than about 70° C.