significant contribution to the structure of the (arene)Ti complex [LTi(η6 -PhCH3 )] (see picture on the right). Labeling experiments have demonstrated that the structure forms through an unusual elimination/σ-π rearrangement reaction in which [LTi(CH2 Ph)2 ] reacts readily with hydrogen; the use of the cyclohexane-linked bis-amidinate ligand L with constrained geometry makes the transformation possible.
甲
1,4-环己二烯二价阴离子共振结构使得向(
芳烃)的结构的显著贡献的Ti配合物[路斯特(η 6 -PhCH 3)](见右边的图片)。标记实验表明,该结构是通过不寻常的消除/σ-π重排反应形成的,其中[LTi(CH 2 Ph)2 ]易于与氢反应;几何形状受限的
环己烷连接的双酰胺基
配体L的使用使转化成为可能。