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利用邻苯二胺、2,6-吡啶二甲酸与三氯化锑在盐酸溶液中经水热反应,合成了一种新的离子型化合物[2,6-bis(Benzimidazol-2-yl)pyridineH2]2+.[SbCl5]2-。通过化学分析、元素分析、热重分析、红外光谱及荧光光谱对结构和性质进行了表征,用X-射线单晶衍射测定了该化合物的晶体结构。化合物的晶体属三斜晶系,P1空间群。Sb3+与其周围5个氯离子配位,构成一个畸变四方锥构型[SbCl5]2-配位结构,2个配阴离子[SbCl5]2-之间通过Sb(1)…Cl(1)ii次级键形成四元环状结构,并与2,6-二(苯并咪唑-2′)吡啶两价阳离子,通过离子键及氢键形成三维网状离子化合物晶体。该化合物具有很好的荧光特性。
A new ionic compound [2,6-bis (Benzimidazol-2-yl) pyridineH2 was synthesized by the reaction of o-phenylenediamine, 2,6-pyridinedicarboxylic acid and antimony trichloride in hydrochloric acid solution ] 2 +. [SbCl5] 2-. The structure and properties were characterized by chemical analysis, elemental analysis, thermogravimetric analysis, infrared spectroscopy and fluorescence spectroscopy. The crystal structure of the compound was characterized by X-ray single crystal diffraction. The crystal of the compound is triclinic, P1 space group. Sb3 + coordinates with its surrounding 5 chloride ions to form a distorted tetragonal conformation [SbCl5] 2-coordination structure with two anions [SbCl5] 2- between Sb (1) ... Cl Bond to form a four-membered ring structure, and with 2,6-bis (benzimidazole-2 ’) pyridine divalent cation, through the ionic and hydrogen bonds to form three-dimensional network of ionic compound crystals. The compound has good fluorescence properties.