Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/207838
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Tuneable Emission of Polyhedral Oligomeric Silsesquioxane Based Nanostructures that Self-Assemble in the Presence of Europium(III) Ions: Reversible trans-to-cis Isomerization |
Autor: | Cinà, V.; Carbonell, Esther; Fusaro, L.; García Gómez, Hermenegildo CSIC ORCID CVN; Gruttadauria, M.; Giacalone, F.; Aprile, C. | Fecha de publicación: | 17-nov-2019 | Editor: | Wiley-VCH | Citación: | ChemPlusChem 85(3): 391-398 (2019) | Resumen: | Hybrid nanostructures with switchable and reversible “blue-red-green” emission were efficiently synthesized. These nanostructures comprise polyhedral oligomeric silsesquioxanes (POSS) that behave as a nanocage that can be functionalized with terpyridine-based organic ligands, which can be easily complexed with europium (III) ions. The complexes were characterized by UV-Vis and fluorescence spectroscopy and their stoichiometry was also confirmed by H NMR spectroscopy. In the presence of the Eu(III) ions, the octafunctionalized nanocages self-assemble to form 3D architectures that display an intense red-emission, especially in the solid state. The presence of an alkenyl group bridging the inorganic core to the organic moiety was employed to tune the emission properties by trans-cis isomerization of the double bond. In the case of the octafunctionalized nanocages (O-POSS), this isomerization was monitored in the presence of Eu(III) cations and was accompanied by an evident colour change from blue (trans-O-POSS) to red (Eu@trans-O-POSS) and finally to green (cis-O-POSS) as consequence of the release of the metal cations. This behaviour, together with the easy dispersion of the dry powder and the possibility of coating as a film in presence of small amounts of solvent, makes the emissive solid promising for applications in materials science. | Versión del editor: | http://dx.doi.org/10.1002/cplu.201900575 | URI: | http://hdl.handle.net/10261/207838 | DOI: | 10.1002/cplu.201900575 | Identificadores: | doi: 10.1002/cplu.201900575 issn: 2192-6506 |
Aparece en las colecciones: | (ITQ) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Tuneable Emission of POSS.pdf | 703,87 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
5
checked on 29-mar-2024
WEB OF SCIENCETM
Citations
4
checked on 26-feb-2024
Page view(s)
110
checked on 23-abr-2024
Download(s)
158
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.