Reaction of Alkenylzirconocenes with Dialkylzirconocenes: Unexpected Formation of Bimetallic (μ-Alkynyl)zirconocene Complexes
1997-05-13T00:00:00Z (GMT) by
Reaction of alkenylzirconocenes Cp2ZrX(MeCCH2) (X = Cl, Br) with dialkylzirconocenes Cp2ZrR2 (R = Me, Et, Bu) yielded the unexpected bimetallic zirconocene complexes Cp2Zr(μ-X)(μ-C⋮CCH3)ZrCp2 (X = Cl, Br). Its structure (X = Cl) was determined by X-ray crystallography. The monitoring of the reaction of Cp2ZrBu2 with Cp2ZrBr(MeCCH2) revealed that the first step of this reaction was an exchange reaction of the Bu and Br groups.
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