Nickel(II) chelates with 1,4-diazacycloheptanediacetate(dachda) and its alkyl derivatives were newly obtained, and characterized by their electronic spectra and magnetic moments. The crystal structure of one of them, studied by X-ray diffraction method, confirmed the proposed square planar structure.
新获得了镍 (II) 与 1,4-二氮杂环庚烷二乙酸酯 (dachda) 及其烷基衍生物的螯合物,并通过电子光谱和磁矩表征。其中之一的晶体结构,通过 X 射线衍射方法研究,证实了所提出的方形平面结构。