carboxylates. The resulting carboxylato complexes, isolated as ClO4− or BPh4− salts, have been fully characterized by elemental analyses, IR, UV/vis spectroscopy, and X-ray crystallography. The possibility of accessing the [NiII2L(μ-O2CR)]+ complexes by carboxylate exchange reactions has also been examined. The main findings are as follows: (i) Substitution reactions between 1 and NaO2CR are not affected
[
镍的混合配位体的性质的依赖性II 2(μ-0 1 2 CR)] +络合物(其中L 2-表示一个24元大环
六胺-dithiophenolato
配体)对
羧酸根共
配体的碱度已审查。用于此目的的19个不同的[
镍II 2 L(μ-O 2 CR)] +络合物(2 - 20)将与对
羧酸盐ķ b已经由[Ni的反应制备的值在9至14的范围II 2大号(μ-Cl)] +(1)和相应的
羧酸钠或三乙
铵的
羧酸盐。将所得
羧酸根络合物,分离为CLO 4 -或BPH 4 -的盐,得到了充分的表征通过元素分析,IR,UV / vis光谱和X-射线晶体学。[
镍访问的可能性II 2(μ-0 1 2 CR)] +还研究了复合物的
羧酸酯交换反应。主要发现如下:(i)1和NaO 2 CR之间的取代反应不受
羧酸盐的碱度或位阻的影响。(ii)配合物2 − 20形成等结构系列bisoctahedral的[
镍II 2 L(μ-O 2 CR)]