| 吡啶-2-甲醛酰腙镉配合物的合成、晶体结构与荧光性质 |
| Synthesis, Crystal Structure and Fluorescence Properties of Cadmium Complexes of Pyridine-2-formaldehyde Hydrazone |
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| 摘要: 合成了3个不同结构的吡啶-2-甲醛缩对氯苯氧乙酰腙（HL）与镉的配合物。通过X射线单晶衍射、红外光谱、紫外光谱、荧光光谱以及热重等分析，对其进行晶体结构和性质的研究。单晶衍射结构解析表明：配合物1属单斜晶系，C2/c空间群，是一个通过氯离子桥联的二聚体，分子式为[Cd（HL） Cl2]2；配合物2属单斜晶系，P21/c空间群，是一个含2个有机配体、蝴蝶状的单核分子，其分子式为[Cd（HL）2Br2]；配合物3属三斜晶系，P1空间群，配合物中只含有一个有机配体，其分子式为[Cd（HL） I2]。固体荧光分析表明：配体和配合物均有很强的荧光性，且发绿光。 |
| 关键词: 酰腙 对氯苯氧乙酸 镉配合物 晶体结构 荧光性能 |
| 基金项目: 国家自然科学基金（No.21641011，21606144）和福建省自然科学基金（No.2015J01053，2020J01065）资助。 |
| Abstract: Three complexes,[Cd(HL)Cl2]2 (1),[Cd(HL)2Br2] (2) and[Cd(HL)I2] (3) (HL=2-(4-chlorophenoxy)-N'-(pyridin-2-ylmethylene)acetohydrazide), were synthesized using a common solution method. The crystal structure and properties were studied by X-ray single crystal diffraction, infrared spectrum, ultraviolet spectrum, fluorescence spectrum and thermogravimetric analysis. The analysis of single crystal diffraction structure shows that complex 1 belongs to monoclinic system, C2/c space group, and is a dimer bridged by chlorine ions. Complex 2 belongs to monoclinic system, P21/c space group. It is a butterfly shaped mononuclear molecule containing two organic ligands. The central Cd2+ ions of complexes 1 and 2 are in a distorted octahedral position. Complex 3 belongs to triclinic system, P1 space group, in which there is only one organic ligand. The coordination polyhedron of Cd2+ ion of complex 3 is distorted trigonal bipyramid. Solid fluorescence analysis showed that both ligand and complexes had strong fluorescence and emitted green light. |
| Keywords: acylhydrazone p-chlorophenoxyacetic acid cadmium complex crystal structure fluorescence properties |
| 投稿时间：2020-08-07 修订日期：2020-10-27 |
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| 黄妙龄,骆耿耿,林金清.吡啶-2-甲醛酰腙镉配合物的合成、晶体结构与荧光性质[J].无机化学学报,2021,37(2):251-258. |
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