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New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence
Europium (III) luminescent chelates possess intrinsic photophysical properties that are extremely useful in a wide range of applications. The lack of examples of coumarin-based lanthanide complexes is mainly due to poor photo-sensitization attempts. However, with the appeal of using such a versatile...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956443/ https://www.ncbi.nlm.nih.gov/pubmed/33652775 http://dx.doi.org/10.3390/molecules26051265 |
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author | Di Pietro, Sebastiano Iacopini, Dalila Moscardini, Aldo Bizzarri, Ranieri Pineschi, Mauro Di Bussolo, Valeria Signore, Giovanni |
author_facet | Di Pietro, Sebastiano Iacopini, Dalila Moscardini, Aldo Bizzarri, Ranieri Pineschi, Mauro Di Bussolo, Valeria Signore, Giovanni |
author_sort | Di Pietro, Sebastiano |
collection | PubMed |
description | Europium (III) luminescent chelates possess intrinsic photophysical properties that are extremely useful in a wide range of applications. The lack of examples of coumarin-based lanthanide complexes is mainly due to poor photo-sensitization attempts. However, with the appeal of using such a versatile scaffold as antenna, especially in the development of responsive molecular probes, it is worth the effort to research new structural motifs. In this work, we present a series of two new tris coumarin-dipicolinate europium (III) complexes, specifically tailored to be either a mono or a dual emitter, tuning their properties with a simple chemical modification. We also encountered a rich chemical speciation in solution, studied in detail by means of paramagnetic NMR and emission spectroscopy. |
format | Online Article Text |
id | pubmed-7956443 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79564432021-03-16 New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence Di Pietro, Sebastiano Iacopini, Dalila Moscardini, Aldo Bizzarri, Ranieri Pineschi, Mauro Di Bussolo, Valeria Signore, Giovanni Molecules Article Europium (III) luminescent chelates possess intrinsic photophysical properties that are extremely useful in a wide range of applications. The lack of examples of coumarin-based lanthanide complexes is mainly due to poor photo-sensitization attempts. However, with the appeal of using such a versatile scaffold as antenna, especially in the development of responsive molecular probes, it is worth the effort to research new structural motifs. In this work, we present a series of two new tris coumarin-dipicolinate europium (III) complexes, specifically tailored to be either a mono or a dual emitter, tuning their properties with a simple chemical modification. We also encountered a rich chemical speciation in solution, studied in detail by means of paramagnetic NMR and emission spectroscopy. MDPI 2021-02-26 /pmc/articles/PMC7956443/ /pubmed/33652775 http://dx.doi.org/10.3390/molecules26051265 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Di Pietro, Sebastiano Iacopini, Dalila Moscardini, Aldo Bizzarri, Ranieri Pineschi, Mauro Di Bussolo, Valeria Signore, Giovanni New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title | New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title_full | New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title_fullStr | New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title_full_unstemmed | New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title_short | New Coumarin Dipicolinate Europium Complexes with a Rich Chemical Speciation and Tunable Luminescence |
title_sort | new coumarin dipicolinate europium complexes with a rich chemical speciation and tunable luminescence |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956443/ https://www.ncbi.nlm.nih.gov/pubmed/33652775 http://dx.doi.org/10.3390/molecules26051265 |
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