Dependence of the Chemical Properties of Macrocyclic [Ni<sup>II</sup><sub>2</sub>L(μ-O<sub>2</sub>CR)]<sup>+</sup>Complexes on the Basicity of the Carboxylato Coligands (L<sup>2−</sup>= macrocyclic N<sub>6</sub>S<sub>2</sub>ligand)
作者:Ulrike Lehmann、Julia Klingele、Vasile Lozan、Gunther Steinfeld、Marco H. Klingele、Steffen Käss、Axel Rodenstein、Berthold Kersting
DOI:10.1021/ic101574a
日期:2010.12.6
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)]