| 基于柔性硫代二乙酸配体的镧系配位聚合物的合成、结构和荧光性质 |
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| 引用本文： | 侯向阳a 李东升,a,b 王潇a 王记江a 任宜霞a 张美丽a. 基于柔性硫代二乙酸配体的镧系配位聚合物的合成、结构和荧光性质[J]. 中国化学, 2009, 27(8): 1481-1486. DOI: 10.1002/cjoc.200990249 |
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| 作者姓名： | 侯向阳a 李东升 a b 王潇a 王记江a 任宜霞a 张美丽a |
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| 作者单位： | a延安大学化学与化工学院，陕西省化学反应工程重点实验室，陕西 延安 716000 ; b三峡大学机械与材料学院， 湖北 宜昌 443002 ; |
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| 摘 要： | 利用硫代二乙酸配体[thiodiacetic acid = H2tda]与稀土盐[SmCl3·nH2O,DyCl3·nH2O]反应合成了两种新型稀土配合物[Ln2(tda)3(H2O)2]n (Ln = Sm(1), Dy(2))，单晶结构分析表明：两个配合物结构相同，均是通过以共边多面体[Ln2O16]为基本单元的一维稀土金属链拓展而成的二维层状结构。有趣的是，在配合物中，硫代二乙酸配体展现了两种配位模式：双“顺-顺桥式双齿、螫合-桥式三齿”模式和双“螯合-桥式三齿、顺-反桥式双齿”模式；正是通过配体这两种配位方式的连接，上述一维稀土金属链扩展为具有(3,4,5,6)连接(47·68)(44·66) (45·6)(46)(43)拓扑结构的二维网络。荧光性质研究表明，在室温下镝配合物呈现黄色荧光，钐配合物呈现鲑鱼粉色荧光。
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| 关 键 词： | 稀土配合物 柔性配体 合成 结构 荧光性质 |
| 收稿时间： | 2009-01-06 |
| 修稿时间： | 2009-03-03 |
Syntheses,Structures and Luminescence Properties of Ln‐Coordination Polymers Based on Flexible Thiodiacetic Acid Ligand |
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| Xiangyang HOU,Dongsheng LI,Xiao WANG,Jijiang WANG,Yixia REN,Meili ZHANG. Syntheses,Structures and Luminescence Properties of Ln‐Coordination Polymers Based on Flexible Thiodiacetic Acid Ligand[J]. Chinese Journal of Chemistry, 2009, 27(8): 1481-1486. DOI: 10.1002/cjoc.200990249 |
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| Authors: | Xiangyang HOU Dongsheng LI Xiao WANG Jijiang WANG Yixia REN Meili ZHANG |
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| Affiliation: | 1. Shaanxi Key Laboratory of Chemical Reaction Engineering, Department of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China;2. College of Mechanical & Material Engineering, China Three Gorges University, Yichang, Hubei 443002, China;3. Tel.: 0086‐0717‐6397516;4. Fax: 0086‐0717‐6397559 |
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| Abstract: | Two novel lanthanide complexes with the formulas [Ln2(tda)3(H2O)2]n [Ln=Sm ( 1 ), Dy ( 2 ), H2tda=thiodiacetic acid] have been prepared by using the corresponding lanthanide salt and H2tda under hydrothermal conditions. Single crystal X‐ray diffraction studies show that the two compounds are isostructural and present a 2D network based on the 1D metallic chain, in which an edge‐sharing dinuclear polyhedral [Ln2O16] was found to be the building unit of the 1D chains. Interestingly, in the network, the tda ligands exhibit two different coordination modes, including the mode La: bis(syn,syn‐bridging bidentate, chelating‐bridging tridentate), and mode Lb: bis(chelating‐ bridging tridentate, syn, anti‐bridging bidentate). Furthermore, through the tda ligand in modes La and Lb, the 1D metallic chains are cross‐linked to generate a 2D network structure with (3,4,5,6)‐connected (47·68)(44·66)(45·6)‐ (46)(43) topology. Photoluminescence measurements indicate that the dysprosium complex is yellow emitters, and the samarium complex shows salmon pink light emission in the solid state at room temperature. |
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| Keywords: | Lanthanide complex flexible ligand synthesis structure luminescence property |
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