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A new mode of luminescence in lanthanide oxalates metal–organic frameworks
Two lanthanide metal–organic frameworks [Ln-MOFs, Ln = Eu(III), Tb(III)] composed of oxalic acid and Ln building units were hydrothermally synthesized and fully characterized by powder X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscop...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9637143/ https://www.ncbi.nlm.nih.gov/pubmed/36335280 http://dx.doi.org/10.1038/s41598-022-23658-z |
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author | Alzard, Reem H. Siddig, Lamia A. Saleh, Na’il Nguyen, Ha L. Nguyen, Quynh Anh T. Ho, Thi H. Bui, Viet Q. Sethupathi, K. Sreejith, P. K. Alzamly, Ahmed |
author_facet | Alzard, Reem H. Siddig, Lamia A. Saleh, Na’il Nguyen, Ha L. Nguyen, Quynh Anh T. Ho, Thi H. Bui, Viet Q. Sethupathi, K. Sreejith, P. K. Alzamly, Ahmed |
author_sort | Alzard, Reem H. |
collection | PubMed |
description | Two lanthanide metal–organic frameworks [Ln-MOFs, Ln = Eu(III), Tb(III)] composed of oxalic acid and Ln building units were hydrothermally synthesized and fully characterized by powder X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscope, and energy-dispersive X-ray spectroscopy. Furthermore, their magnetic susceptibility measurements were obtained using SQUID based vibrating sample magnetometer (MPMS 3, Quantum Design). Both Ln-MOFs exhibited highly efficient luminescent property. Solid-state photoluminescence (PL) measurements revealed phosphorescence emission bands of Eu-MOF and Tb-MOF centered at 618 nm (red emission) and 550 nm (green emission) upon excitation at 396 nm and 285 nm, respectively. Eu-MOF and Tb-MOF displayed a phosphorescence quantum yield of 53% and 40%, respectively. Time-resolved PL analyses showed very long lifetime values, at 600 and 1065 ± 1 µs for Eu-MOF and Tb-MOF, respectively. Calculations performed by density functional theory indicated a charge transfer form metal centres to the ligand which was in good agreement with the experimental studies. Therefore, this new mode of highly photoluminescent MOF materials is studied for the first time which paves the way for better understanding of these systems for potential applications. |
format | Online Article Text |
id | pubmed-9637143 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-96371432022-11-07 A new mode of luminescence in lanthanide oxalates metal–organic frameworks Alzard, Reem H. Siddig, Lamia A. Saleh, Na’il Nguyen, Ha L. Nguyen, Quynh Anh T. Ho, Thi H. Bui, Viet Q. Sethupathi, K. Sreejith, P. K. Alzamly, Ahmed Sci Rep Article Two lanthanide metal–organic frameworks [Ln-MOFs, Ln = Eu(III), Tb(III)] composed of oxalic acid and Ln building units were hydrothermally synthesized and fully characterized by powder X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscope, and energy-dispersive X-ray spectroscopy. Furthermore, their magnetic susceptibility measurements were obtained using SQUID based vibrating sample magnetometer (MPMS 3, Quantum Design). Both Ln-MOFs exhibited highly efficient luminescent property. Solid-state photoluminescence (PL) measurements revealed phosphorescence emission bands of Eu-MOF and Tb-MOF centered at 618 nm (red emission) and 550 nm (green emission) upon excitation at 396 nm and 285 nm, respectively. Eu-MOF and Tb-MOF displayed a phosphorescence quantum yield of 53% and 40%, respectively. Time-resolved PL analyses showed very long lifetime values, at 600 and 1065 ± 1 µs for Eu-MOF and Tb-MOF, respectively. Calculations performed by density functional theory indicated a charge transfer form metal centres to the ligand which was in good agreement with the experimental studies. Therefore, this new mode of highly photoluminescent MOF materials is studied for the first time which paves the way for better understanding of these systems for potential applications. Nature Publishing Group UK 2022-11-05 /pmc/articles/PMC9637143/ /pubmed/36335280 http://dx.doi.org/10.1038/s41598-022-23658-z Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Alzard, Reem H. Siddig, Lamia A. Saleh, Na’il Nguyen, Ha L. Nguyen, Quynh Anh T. Ho, Thi H. Bui, Viet Q. Sethupathi, K. Sreejith, P. K. Alzamly, Ahmed A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title | A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title_full | A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title_fullStr | A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title_full_unstemmed | A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title_short | A new mode of luminescence in lanthanide oxalates metal–organic frameworks |
title_sort | new mode of luminescence in lanthanide oxalates metal–organic frameworks |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9637143/ https://www.ncbi.nlm.nih.gov/pubmed/36335280 http://dx.doi.org/10.1038/s41598-022-23658-z |
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