新型配合物[Ni(Hpdc)(2,2’-bipy)(H_2O)_2]·H_2O的合成和结构表征

• 作 者: 韩璐 盛道鹏 魏慧英 杨延钊
• 机 构: 山东大学化学与化工学院,山东大学特种功能聚集体材料教育部重点实验室,
• 出 处: 山东大学学报(理学版)
• 发表日期: 2012年05期
• 关键词: 配位化合物 3 5-吡唑二甲酸 2 2’-联吡啶 水热合成法 π-π相互作用 单晶衍射仪 二甲酸 联吡啶 芳香环 水热法合成

采用水热法合成了一种新型配位化合物[Ni(Hpdc)(2,2’-bipy)(H2O)2].H2O(H3pdc=3,5-吡唑二甲酸,2,2’-bipy=2,2’-联吡啶)。用热重分析、元素分析、红外光谱对该配位化合物进行了表征,用X射线单晶衍射仪测定了其晶体结构。结果表明标题化合物属三斜晶系(空间群Pī),金属离子位于一个变形八面体的中心。镍(II)以六配位的方式,与三个氧原子和三个氮原子进行了配位。构成晶胞的四个配合物分子通过氢键相互连结,芳香环间未形成π-π相互作用。

A novel coordination compound [Ni (Hpdc) (2,2’-bipy) (H2O) 2] has been synthesized by hydrothermal method. H 2 O (H3pdc = 3,5-pyrazole dicarboxylic acid, 2,2’-bipy = 2,2’-bipyridine). The complex was characterized by thermogravimetric analysis, elemental analysis and infrared spectroscopy. The crystal structure of the complex was characterized by X-ray single crystal diffraction. The results show that the title compound is triclinic (space group Pī) and the metal ions are centered on a distorted octahedron. Nickel (II) coordinates to six oxygen atoms with three oxygen atoms and three nitrogen atoms. The four complex molecules that constitute the unit cell are connected to each other by hydrogen bonds, and no π-π interaction is formed between the aromatic rings.