作者:Lauren L. Cordeiro、Olga Dmitrenko、Glenn P. A. Yap、Charles G. Riordan
DOI:10.1021/acs.inorgchem.1c00066
日期:2021.5.3
Two series of high-spin nickel complexes, [TpPh,Me]Ni(EAr) (E = O, Se, Te; Ar = C6H5) and [TpPh,Me]Ni(SeC6H4-4-X) (X = H, Cl, Me, OMe), were prepared by metathetical reaction of the nickel(II) halide precursor with sodium salts of the corresponding chalcogen, NaEAr. X-ray crystallographic characterization and spectroscopic studies have established the geometric and electronic structures of these complexes
两套高自旋镍配合物,[Tp Ph,Me ] Ni(EAr)(E = O,Se,Te; Ar = C 6 H 5)和[Tp Ph,Me ] Ni(SeC 6 H 4 -4 -X)(X = H,Cl,Me,OMe)是通过卤化镍(II)前体与相应硫族元素NaEAr的钠盐进行复分解反应制备的。X射线晶体学表征和光谱学研究已经确定了这些配合物的几何和电子结构。观察到的光谱和结构特征根据芳基硫族元素酸酯和对取代基的身份变化揭示了不同的趋势。[Tp Ph,Me的反应] Ni(EAr)与甲基碘的络合物很容易进行,产生了相应的甲基芳基硫族元素和[Tp Ph,Me ] NiI。[Tp Ph,Me ] Ni(SeC 6 H 5)与MeI反应的动力学和计算分析表明,亲电烷基化反应是通过经典的S N 2过渡态通过缔合机制发生的。