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采用水热法合成了2种铈(Ⅳ)配合物[Ce(dipic)3]·(H2bipy)·4H2O(1)和[Ce(dipic)3]·(H2bpa)·3.5H2O(2)(2,6-H2dipic=2,6-吡啶二羧酸,bipy=4,4′-联吡啶,bpa=二(4-吡啶基)胺),并通过X射线单晶衍射、元素分析、FTIR及热重分析对其结构和组成进行了表征。单晶衍射结构表明:配合物1和2的晶体都属于三斜晶系,P1空间群。配合物的中心金属铈(Ⅳ)离子被3个完全去质子化的2,6-吡啶二羧酸根环绕,配体2,6-吡啶二羧酸的羧基均以单齿形式配位。热分析表明2个配合物在64和50℃开始发生分解。
Two kinds of cerium (Ⅳ) complexes [Ce (dipic) 3] · (H2bipy) · 4H2O (1) and [Ce (dipic) 3] · (H2bpa) · 3.5H2O (2) Bipy = 4,4’-bipyridine, bpa = bis (4-pyridyl) amine), and X-ray single crystal diffraction, elemental analysis, FTIR and thermal Re-analysis of its structure and composition were characterized. The single crystal diffraction structure shows that the crystals of complexes 1 and 2 all belong to the triclinic and P1 space group. The central metal cerium (IV) ion of the complex was surrounded by 3 completely deprotonated 2,6-pyridinedicarboxylates, the carboxyl groups of the 2,6-pyridinedicarboxylic acid ligand all coordinated in monodentate form. Thermal analysis shows that the two complexes begin to decompose at 64 and 50 ° C.