两种基于二甲基苯基咪唑二羧酸酯的镧系金属有机框架用于苯甲醛的发光传感
Two dimethylphenyl imidazole dicarboxylate-based lanthanide metal-organic frameworks for luminescence sensing of benzaldehyde.
作者信息
Shi Bingbing, Zhong Yuanhao, Guo Lili, Li Gang
机构信息
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China.
出版信息
Dalton Trans. 2015 Mar 7;44(9):4362-9. doi: 10.1039/c4dt03326d.
Two novel dimethylphenyl imidazole dicarboxylate-based lanthanide(III)-organic frameworks, [Ln(H2DMPhIDC)3(H3DMPhIDC)]n (Ln = Eu (1), Tb (2); H3DMPhIDC = 2-(3,4-dimethylphenyl)-1H-imidazole-4,5-dicarboxylic acid) have been synthesized under hydrothermal conditions. Single crystal X-ray diffraction analyses revealed that polymers 1 and 2 crystallize in the tetragonal space group I4₁ and exhibit isostructural three-dimensional (3D) solid-state frameworks. Both complexes indicate characteristic sharp emission bands of Eu(3+) or Tb(3+) ions, which are selectively sensitive to benzaldehyde-based derivatives (benzaldehyde, m-methylbenzaldehydes, m-carboxylbenzaldehyde and m-hydroxybenzaldehyde). These properties make both complexes potential fluorescence sensors for these chemicals.
在水热条件下合成了两种基于二甲基苯基咪唑二羧酸酯的新型镧系元素（III）有机框架化合物[Ln(H2DMPhIDC)3(H3DMPhIDC)]n（Ln = Eu (1)，Tb (2)；H3DMPhIDC = 2-(3,4-二甲基苯基)-1H-咪唑-4,5-二羧酸）。单晶X射线衍射分析表明，聚合物1和2在四方空间群I4₁中结晶，并呈现出同构的三维（3D）固态框架。两种配合物均显示出Eu(3+)或Tb(3+)离子的特征尖锐发射带，这些发射带对基于苯甲醛的衍生物（苯甲醛、间甲基苯甲醛、间羧基苯甲醛和间羟基苯甲醛）具有选择性敏感性。这些特性使得这两种配合物成为这些化学品的潜在荧光传感器。
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