Activation of a Zinc-Bound Ethyl Group by Formation of a Zn-C_(Et)-Ba Moiety and Crystal Structure of [{(Me_3Si)_2N}Ba(thf)Zn_2(mu-Et)(mu_3-PSitBu_3)_2]_2 with Bridging Ethyl Substituents

摘要

The organometallic chemistry of the heavy alkaline-earth metals has been studied for many decades.However,despite the enormous efforts to prepare and structurally characterize such compounds only very few crystal structures of organo-barium compounds are known.More than 60 years ago Gilman and Woods reported that the addition of diethylzinc drastically increases the reactivity of dialkylbarium towards benzonitrile.