A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies
Ratiometric fluorescent sensing based on dual-emitting fluorescent coordination polymers (FL-CPs) has attracted intense attention due to their sensing accuracy and easy visualization when compared with sensing relying solely on monochromatic FL-CPs. In this work, a series of rare-earth metal-based C...
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2024-10-01
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| author | Nian-Hao Wang Jin-Mei Liu Bin Tan Zhao-Feng Wu |
| author_facet | Nian-Hao Wang Jin-Mei Liu Bin Tan Zhao-Feng Wu |
| author_sort | Nian-Hao Wang |
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| description | Ratiometric fluorescent sensing based on dual-emitting fluorescent coordination polymers (FL-CPs) has attracted intense attention due to their sensing accuracy and easy visualization when compared with sensing relying solely on monochromatic FL-CPs. In this work, a series of rare-earth metal-based CPs, formuled as [(CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>][Ln(bpdc)<sub>2</sub>] (Ln<sup>3+</sup> = Y<sup>3+</sup>, Eu<sup>3+</sup> and Tb<sup>3+</sup>, H<sub>2</sub>bpdc = biphenyl-4,4′-dicarboxylic acid), are presented, which show dual emission aroused from the Ln<sup>3+</sup> ions and the inefficient intermolecular energy transfer from ligands to Ln<sup>3+</sup> metals. For clarity, the as-made Ln-CPs are named Eu-bpdc, Tb-bpdc, and Y-bpdc based on the corresponding Ln<sup>3+</sup>. Notably, Eu-bpdc, presented as an example, could be used as FL sensing material ratiometric to Fe<sup>3+</sup> ions. The ratio of FL intensity of Eu<sup>3+</sup> ions to bpdc<sup>2−</sup> ligands (<i>I</i><sub>415</sub>/<i>I</i><sub>615</sub>) showed a good linear relationship with the concentrations of Fe<sup>3+</sup> ions. Moreover, the detection process could be visibly monitored through a change from purple to blue when Eu-bpdc was used as an FL proble. This work provides a good example for exploring visibly ratiometric sensors based on FL-CPs. |
| format | Article |
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| language | English |
| publishDate | 2024-10-01 |
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| spelling | doaj-art-fffadf37d7dc4b1c999b12e4bec027072025-08-20T02:13:14ZengMDPI AGSensors1424-82202024-10-012421686710.3390/s24216867A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing StudiesNian-Hao Wang0Jin-Mei Liu1Bin Tan2Zhao-Feng Wu3College of Chemistry, Fuzhou University, Fuzhou 350116, ChinaCollege of Chemistry, Fuzhou University, Fuzhou 350116, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou 350002, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou 350002, ChinaRatiometric fluorescent sensing based on dual-emitting fluorescent coordination polymers (FL-CPs) has attracted intense attention due to their sensing accuracy and easy visualization when compared with sensing relying solely on monochromatic FL-CPs. In this work, a series of rare-earth metal-based CPs, formuled as [(CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>][Ln(bpdc)<sub>2</sub>] (Ln<sup>3+</sup> = Y<sup>3+</sup>, Eu<sup>3+</sup> and Tb<sup>3+</sup>, H<sub>2</sub>bpdc = biphenyl-4,4′-dicarboxylic acid), are presented, which show dual emission aroused from the Ln<sup>3+</sup> ions and the inefficient intermolecular energy transfer from ligands to Ln<sup>3+</sup> metals. For clarity, the as-made Ln-CPs are named Eu-bpdc, Tb-bpdc, and Y-bpdc based on the corresponding Ln<sup>3+</sup>. Notably, Eu-bpdc, presented as an example, could be used as FL sensing material ratiometric to Fe<sup>3+</sup> ions. The ratio of FL intensity of Eu<sup>3+</sup> ions to bpdc<sup>2−</sup> ligands (<i>I</i><sub>415</sub>/<i>I</i><sub>615</sub>) showed a good linear relationship with the concentrations of Fe<sup>3+</sup> ions. Moreover, the detection process could be visibly monitored through a change from purple to blue when Eu-bpdc was used as an FL proble. This work provides a good example for exploring visibly ratiometric sensors based on FL-CPs.https://www.mdpi.com/1424-8220/24/21/6867FL-CPsrare earth metalsdual emissionratiometric sensing |
| spellingShingle | Nian-Hao Wang Jin-Mei Liu Bin Tan Zhao-Feng Wu A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies Sensors FL-CPs rare earth metals dual emission ratiometric sensing |
| title | A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies |
| title_full | A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies |
| title_fullStr | A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies |
| title_full_unstemmed | A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies |
| title_short | A Series of Rare-Earth Metal-Based Coordination Polymers: Fluorescence and Sensing Studies |
| title_sort | series of rare earth metal based coordination polymers fluorescence and sensing studies |
| topic | FL-CPs rare earth metals dual emission ratiometric sensing |
| url | https://www.mdpi.com/1424-8220/24/21/6867 |
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