Abstract

A new homometallic cubane-like nickel(II) complex based on N-2-(2-pyridyl)ethyl-2-aminoethanesulfonic acid [Ni₄L₄(OH)₄]·2H₂O (I) is synthesized, and its structure is studied by X-ray diffraction (XRD) (CIF file CCDC no. 2211359). In crystals of the complex, the metallocenters are joined into tetrahedra with the Ni…Ni distances (3.144–3.201 Å) supplemented to cubanes by the μ₃-bridging oxygen atoms of the hydroxy groups. The coordination environment of each metallocenter is a distorted octahedron. The ligand is deprotonated, exists in the facial conformation, and performs the tridentate function to form two six-membered conjugated chelate cycles.

中文翻译：

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一系列牛磺酸 N 衍生物中的类古巴烷镍 (II) 络合物的第二个例子

摘要

合成了一种基于N -2-(2-吡啶基)乙基-2-氨基乙磺酸[Ni ₄ L ₄ (OH) ₄ ]·2H ₂ O ( I )的新型同金属类立方镍(II)配合物，并对其进行了表征。通过 X 射线衍射 (XRD) 研究结构（CIF 文件 CCDC 编号 2211359）。在配合物的晶体中，金属中心连接成四面体，Ni…Ni 距离 (3.144–3.201 Å) 通过羟基的μ ₃桥接氧原子补充到立方烷中。每个金属中心的配位环境是一个扭曲的八面体。配体被去质子化，存在于面部构象中，并发挥三齿功能，形成两个六元共轭螯合循环。