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用3d金属离子锰与2-羟基-3-吡啶羧酸配体合成出新的水杨酸式螯合具有三维网络结构的Mn(H_2O)_2(HNic)_2配合物。均三苯甲酸苯环上一、三、五位置上的羧基都有脱质子化进行各种不同的结合,利用这点水溶液合成氢键配合物Mn(H_2O)_2(HNic)。我们采用常规分析方法即元素分析谱等,对配合物进行了表征.利用X-射线衍射晶体结构分析,结果显示该配合物属于单斜晶系,空间群为P2(1)/c,每一各晶胞包含两个Mn(H_2O)_2(HNic)_2分子,一个2-羟基-3-吡啶羧酸分子,通过N原子质子化的H原子与临近2-羟基-3-吡啶羧酸分子上的羟基上O原子又形成了一个八元环的氢键结构,该配合物具有复杂的氢键结构。
A new salicylic acid chelated Mn (H_2O) _2 (HNic) _2 complex with three-dimensional network structure was synthesized using 3d metal ion manganese and 2-hydroxy-3-pyridinecarboxylic acid ligand. All of the carboxyl groups on the benzene ring of trisbenzoic acid at the first, third and fifth positions were deprotonated and various combinations were carried out. The hydrogen bond complex Mn (H_2O) _2 (HNic) was synthesized by using this aqueous solution. The complex was characterized by the conventional method of elemental analysis, etc. The crystal structure of the complex was characterized by X-ray diffraction and the results showed that the complex belongs to monoclinic system with space group P2 (1) / c Each unit cell contains two molecules of Mn (H_2O) _2 (HNic) _2, a molecule of 2-hydroxy-3-pyridinecarboxylic acid which is protonated by the N atom and adjacent to the molecule of 2-hydroxy-3-pyridinecarboxylic acid Of the hydroxyl O atoms in turn formed an eight-membered ring hydrogen bond structure, the complex has a complex hydrogen bond structure.