| 离子化合物[2，6-bis(Benzimidazol-2-yl)pyridineH2]2+·[SbCl5]2-的合成、晶体结构及荧光性质 |
| Synthesis, Crystal Structure and Fluorescence Spectrum of a Ionic Compound [2,6-bis(Benzimidazol-2-yl)pyridineH2]2+·[SbCl5]2- |
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| 摘要: 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。 |
| 关键词: 2，6-二(苯并咪唑-2′)吡啶 离子化合物 水热合成 晶体结构 荧光光谱 |
| 基金项目: |
| Abstract: A ionic compound [2,6-bis(Benzimidazol-2-yl)pyridineH2]2+·[SbCl5]2- was synthesized by the hydrother-mal reaction of o-phenylenediamine, pyridine-2,6-dicarboxylic acid with SbCl3 in 1∶1 HCl solution. The compound was characterized by chemical analysis, elemental analysis，TG-DTA，fluorescence spectrum and IR spectra. The single crystal structure was determined by X-ray single crystal diffraction. It crystallizes in triclinic system, space group P1 with: a=0.987 2(10) nm, b=1.133 32(11) nm, c=1.182 4(2) nm, α=108.269(10)°, β=100.807(10)°, γ=107.52 3(10)°, Z=2, V=1.138 4(3) nm3, Dc=1.786 g·cm-3, μ=1.816 mm-1, F(000)=600, R1=0.022 0, wR2=0.057 1. The single crystal structure indicates that the antimony ion to five Cl- forms a coordination structure of distorted square pyramid. Two [SbCl5]2- form four-member ring by scondary bonding Sb(1)…Cl(1)ⅱ, and the four-member ring with 2,6-bis(Benzimidazol-2-yl)pyridine cation forms the three-dimensional reticulation ionic crystal by ionic bonds and hydrogen bonds. It has been proved that the title compound has fluorescence behaviour. CCDC: 666440. |
| Keywords: 2,6-bis(Benzimidazol-2-yl)pyridine ionic compound hydrothermal synthesis crystal structure fluorescence spectrum |
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| 郭应臣,卓立宏,乔占平,黄群增,孙汝中,闫家伟.离子化合物[2，6-bis(Benzimidazol-2-yl)pyridineH2]2+·[SbCl5]2-的合成、晶体结构及荧光性质[J].无机化学学报,2008,24(1):15-20. |
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