| 以5-甲基-3-吡唑甲酸和菲咯啉为配体的锰和镉的配合物的合成、晶体结构和荧光性能 | |
| Syntheses, Crystal Structures and Luminescent Properties of Manganese and Cadmium Complexes Based on 5-Methyl-1H-Pyrazole-3-Carboxylic Acid and Phenanthroline Ligands | |
| 摘要: 以5-甲基-3-吡唑甲酸和菲咯啉为配体, 合成了一个单核锰(Ⅱ)配合物[Mn(HMPCA)2(phen)]·2H2O (1)和一个具有双核结构单元的一维镉(Ⅱ)的配位聚合物[Cd2(HMPCA)2(phen)2(H2O)2]·2H2O (2)(H2MPCa=5-甲基-3-吡唑甲酸, phen=菲咯啉), 并用元素分析、红外光谱、X-射线单晶衍射结构分析、热重分析等对其进行了表征。配合物1属于三斜晶系, 空间群为P1, 配合物2属于正交晶系, 空间群为Pccn。配合物1中的锰(Ⅱ)离子位于一个畸变的八面体配位环境中, 独立结构单元间通过分子间氢键作用构成一个三维的超分子结构。而在2中, 每个镉(Ⅱ)离子位于一个五角双锥体中, 来自5-甲基-3-吡唑甲酸根的氧原子桥联2个相邻的镉(Ⅱ)离子, 形成一个一维链;这些一维链和水分子通过分子间氢键进一步形成一个三维的超分子结构。考察了配合物1和2的热稳定性和荧光性能。 | |
| 关键词: 锰 镉 5-甲基-3-吡唑甲酸 菲咯啉 晶体结构 荧光 | |
| 基金项目: 国家自然科学基金(No.20971060, 21101018),南京大学配位化学国家重点实验室开放课题资助项目。 | |
| Abstract: One monomeric complex [Mn(HMPCA)2(phen)]·2H2O (1) and one 1D coordination polymer [Cd2(HMPCA)2 (phen)2(H2O)2]·2H2O (2) with binuclear structural unit (H2MPCa=5-methyl-1H-pyrazole-3-carboxylic acid, phen=phenanthroline) have been synthesized and characterized by elemental analysis, IR spectra, thermogravimetric analysis and single crystal X-ray diffraction. Complex 1 crystallizes in the triclinic system, space group P1, while 2 in the orthorhombic system, space group Pccn. In 1, Mn(Ⅱ) ion located in a distorted octahedral coordination geometry, discrete water molecules and mononucleate units are assembled into a 3D supramolecular network. In 2, each Cd(Ⅱ) ion located in a pentagonal bipyramid geometry. Each carboxyl group from HMPA- anion bridges two adjacent Cd(Ⅱ) ions, forming a 1D chain. These chains and water molecules are connected by hydrogen bonds, forming a 3D supramolecular framework. The thermal stability and luminescent properties of them are also investigated. CCDC: 1044243, 1; 1044244, 2. | |
| Keywords: manganese(Ⅱ) cadmium(Ⅱ) 5-methyl-1H-pyrazole-3-carboxylic acid crystal structure photoluminescence | |
| 投稿时间：2015-01-28 修订日期：2015-05-13 | |
| 摘要点击次数: 1428 | |
| 全文下载次数: 1547 | |
| 翟长伟,程美令,韩伟,刘琦.以5-甲基-3-吡唑甲酸和菲咯啉为配体的锰和镉的配合物的合成、晶体结构和荧光性能[J].无机化学学报,2015,31(7):1409-1416. | |
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| Support information: 相关附件： file150065_Supplementary materials-15-1-28.doc | |
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