| 三维超分子化合物[2-(3-pyridyl)benzimidazoleH2]24+·[Cd2Cl8]4-的水热合成、晶体结构及发光性质 |
| Hydrothermal Synthesis, Crystal Structure and Photoluminescence Property of 3D Supermolecular Compound [2-(3-pyridyl) benzimidazoleH2]24+·[Cd2Cl8]4- |
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| 摘要: 将邻苯二胺、3-吡啶甲酸与二氯化镉在1∶1的盐酸溶液中经水热反应，合成了一种超分子化合物[2-(3-pyridyl)benzimidazoleH2]24+·[Cd2Cl8]4-。通过元素分析、红外光谱、热重对其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。化合物晶体为单斜晶系，P21/c空间群。超分子化合物 |
| 关键词: 2-(3-吡啶基)苯并咪唑 超分子化合物 晶体结构 发光性质 |
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| Abstract: A supermolecular compound, [2-(3-pyridyl)benzimidazoleH2]24+·[Cd2Cl8]4- was synthesized by the hydro-thermal reaction of o-diaminobenzene, nicotinic acid with CdCl2 in 1∶1 HCl solution. The structure was characterized by elemental analysis, IR spectral analysis, thermogravimetric analysis. The single crystal structure was determined by X-ray single crystal structure analysis. The crystal structure of the compound belongs to monoclinic system, space group P21/c, with a=0.762 7(7) nm, b=1.589 2(14) nm, c=1.252 6(11) nm, β=90.013(9)°, Z=2, V=1.518(2) nm3, Dc=1.975 g·cm-3, μ=2.133 mm-1, F(000)= 880, R1=0.017 5 and wR2=0.043 5. Cd2+ ion with four chloride ions coordinate in the compound formed a distorted pyrometric cone [CdCl4]2-. Two coordination anions [CdCl4]2- formed biquaternion ring structure of Binuclear cadmium(Ⅱ) of penta-coordinated by secondary chlorine-bridged (Cd-Cl-Cd). Moreover, the ring structure formed the three-dimensional supermolecular compound by electrostatic attraction, hydrogen bond and π-π stacking with two 2-(3-pyridyl)benzimidazole cations. Fluorescence spectral analysis showed that the title compound has a good photoluminescence property. CCDC: 710524. |
| Keywords: 2-(3-pyridyl)benzimidazole supermolecular compound crystal structure photoluminescence property |
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| 郭应臣,孙汝中,乔占平,黄群增,王宏伟.三维超分子化合物[2-(3-pyridyl)benzimidazoleH2]24+·[Cd2Cl8]4-的水热合成、晶体结构及发光性质[J].无机化学学报,2009,25(8):1447-1451. |
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