Bis(bismuth)toluene inverted-sandwich complex supported by aminetris(phenoxide) ligands.
Bis(bismuth)toluene inverted-sandwich complex supported by aminetris(phenoxide) ligands.
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由胺三（酚盐）配体支持的双（铋）甲苯倒置三明治络合物。
作者：
Luke E. Turner;M. Davidson;Matthew D. Jones;H. Ott;V. Schulz;P. Wilson
铋的酰胺或醇盐与酚配体前体的反应产生铋络合物的aminetris（酚盐），其中之一，其特征在于通过X-射线晶体学，揭示单体Bi单元的四齿NO3配体进一步通过对称的甲苯桥成双（铋）甲苯反夹心复合物。合成类似的Sb配合物表明在金属中心的一个显着不同的几何和电子环境，证明了固态分子结构。密度泛函理论计算的夹心铋芳烃复合物表明存在一个弱的σ *-2pi相互作用。
The reaction of bismuth amides or alkoxides with phenolic ligand precursors yields Bi complexes of aminetris(phenoxide)s, one of which was characterized by X-ray crystallography, revealing monomeric Bi units of the tetradentate NO3 ligand further associated via a symmetrical toluene bridge into a bis(bismuth)toluene inverted-sandwich complex. Synthesis of the analogous Sb complex suggests a markedly different geometric and electronic environment at the metal center, as evidenced by the solid-state molecular structure. Density functional theory calculations of the sandwich bismuth arene complex indicate the presence of a weak sigma*-2pi interaction.