| 吡啶-2,5-二羧酸钐(Ⅲ)、镝(Ⅲ)配合物的合成、结构及性质 |
| Synthesis, Structure and Properties of Sm(Ⅲ) and Dy(Ⅲ) Complexes with Pyridine-2,5-dicarboxylic Acid |
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| 摘要: 以Sm(NO3)3·6H2O、Dy(NO3)3·6H2O、吡啶-2,5-二羧酸(H2pydc)为原料,用水热合成法合成了2个新的稀土金属配合物[Ln(pydc)2(H2O)5]·4H2O(Ln=Sm (1),Dy (2)),单晶结构经X单晶衍射仪分析确定,两种配合物的晶系均为单斜晶系,C2/c空间群。对晶体的性质进行元素分析、热重、红外光谱,荧光等分析。结果表明,配合物1和2在常温下表现出稀土离子相应的特征荧光发射。另外,本文对两种配合物进行了热稳定性及动力学分析。 |
| 关键词: 稀土 配合物 羧酸 水热合成 荧光性质 |
| 基金项目: 西安工程大学校科研启动基金(No.BS0902)资助项目。 |
| Abstract: Two new Lanthanide complexes [Ln(pydc)2(H2O)5]·4H2O (Ln=Sm (1), Dy (2)) were obtained by the hydrothennal reactions of Ln(NO3)3·6H2O, pyridine-2,5-dicarboxylic acid (H2pydc) with 1:1 mole ratio. Single-crystal X-ray diffraction analysis reveals that both the crystals belong to monoclinic,space group C2/c. The structure and property of complexes have been characterized by elemental analysis, thermal analyses, IR spectra and Fluorescence. The single crystal structures show that the two complexes are isomorphic and have zero-dimensional structures and hydrogen bonds result in three-dimensional supramolecular structures. the coordination number of central ion Ln(Ⅲ) is nine. The complex 1 and 2 exhibit intense luminescence in the liquid state at room temperature. CCDC: 869044, 1; 874032, 2. |
| Keywords: lanthanide coordination complex carboxylic acid thermalsynthesis fluorescence |
| 投稿时间：2012-05-22 修订日期：2013-03-06 |
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| 解凤霞,张欣欣,张丹,华敏,张逢星.吡啶-2,5-二羧酸钐(Ⅲ)、镝(Ⅲ)配合物的合成、结构及性质[J].无机化学学报,2013,29(7):1497-1503. |
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