A Tb(III) complex based on 3−pyridylacetic showing luminescent detection for Fe3+ ion

Fang Liu, Ying-Bing Lu, Yu-Lin Zhou, Yu Lei, Bei-Bei Wang, Wei Yang, Wen-Tong Chen, Shui-Dong Zhu
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Abstract

A new Tb(III) complex based on 3−pyridylacetic acid, [Tb(H(3−PAA)2)(NO3)2] (1, 3−PAA = 3−pyridylacetic ligand), has been triumphantly prepared and structurally characterized. Complex 1 is a 1D chained structure linked by carboxylate groups of the 3−PAA ligand, and its 2D supramolecular packing is controlled mainly by hydrogen-bonds. The compound exhibits outstanding thermal stability and excellent stability under CH3OH solutions. Moreover, compound 1 shows a strong solid-state green-emitting emission at room temperature, which demonstrates that the ligand can effectively sensitize the emission of the Tb(III) ion, and it can serve as a responsive sensing material for detecting the Fe3+ ion in CH3OH solutions.
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一种基于 3-吡啶乙酸的锑(III)配合物,可对 Fe3+ 离子进行发光检测
我们成功地制备了一种基于 3-吡啶乙酸的新锑(III)配合物 [Tb(H(3-PAA)2)(NO3)2](1,3-PAA = 3-吡啶乙酸配体),并对其进行了结构表征。配合物 1 是由 3-PAA 配体的羧酸基团连接的一维链状结构,其二维超分子堆积主要由氢键控制。该化合物具有出色的热稳定性和在 CH3OH 溶液中的优异稳定性。此外,化合物 1 在室温下显示出较强的固态绿色发射光谱,这表明该配体能有效地敏化 Tb(III)离子的发射,可用作检测 CH3OH 溶液中 Fe3+ 离子的响应性传感材料。
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