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由三乙四胺六乙酸(TTHA)与NiCO3·2Ni (OH)2·4H2 O 在水溶液中反应得到了蓝色晶体[Ni(H2O)6]2+·[Ni2TTHA(H2O)2]2-·4H2O,并对其进行了单晶X 射线衍射、元素分析、摩尔电导、紫外可见光谱和热重差热分析表征.结果表明,在该配合物的结构中,水合阳离子[Ni(H2O)6]2+ 的镍(Ⅱ)离子中心被来自水的6个氧原子配位,形成一个近似对称的八面体;阴离子[Ni2TTHA(H2O)2]2-中的每个镍(Ⅱ)离子中心被来自配体TTHA的2个烷胺氮原子、3个羧基氧原子和1个来自水的氧原子配位,双核镍(Ⅱ)离子被来自配体TTHA烷胺氮原子桥连,形成两个被扭曲的八面体.
The blue crystal [Ni (H2O) 6] 2 + [Ni2TTHA (H2O) 2] 2 was obtained from the reaction of triethylenetetraminehexaacetic acid (TTHA) with NiCO3.2Ni (OH) 4H2O, and characterized by single crystal X-ray diffraction, elemental analysis, molar conductance, UV-vis spectra and TG-DTA results show that in the structure of the complex, the hydration cation [Ni (H2O) 6] The nickel (Ⅱ) ion center of 2+ is coordinated by six oxygen atoms from water to form an approximately symmetrical octahedron. Each nickel (Ⅱ) ion center in the anion [Ni2TTHA (H2O) 2] 2- is derived from The two alkyl amine nitrogen atoms, three carboxyl oxygen atoms and one oxygen atom from water of the TTHA ligand are coordinated and the binuclear nickel (II) ions are bridged by ligands from the TTHA alkylamine nitrogen atom to form two chains Octahedron