AI Article Synopsis
- Researchers have developed new rare-earth coordination polymers using "light" lanthanides like Pr, Nd, Sm, and Eu with terephthalic acid through a slightly modified synthesis method.
- The crystal structures were analyzed using Rietveld refinement, revealing isostructural networks primarily influenced by the positions of heavier elements in all four types of materials.
- A detailed luminescence study demonstrated unique emissions from praseodymium and samarium in the visible spectrum, as well as strong europium luminescence and near-infrared emissions in neodymium-based MOFs.
Article Abstract
Rare-earth coordination polymers or lanthanide-organic frameworks with hitherto unreported crystal structures have been obtained on the basis of the "light" lanthanides Pr, Nd, Sm, and Eu in combination with terephthalic acid and using a slightly altered literature synthesis procedure. Rietveld refinement has shown that powder XRD patterns of such compounds are largely dominated by the positions of the heavy elements, pointing to isostructural networks for all four terephthalate-based materials. An in-depth luminescence study has been performed on the reported MOFs, showing rare praseodymium and samarium emission in the visible spectrum, aside from the strong europium luminescence and the near-infrared emission from both a terephthalate and 2,5-pyridinedicarboxylate based neodymium-MOF.
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| http://dx.doi.org/10.1021/ic301544q | DOI Listing |
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