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http://hdl.handle.net/10261/207838
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dc.contributor.author | Cinà, V. | - |
dc.contributor.author | Carbonell, Esther | - |
dc.contributor.author | Fusaro, L. | - |
dc.contributor.author | García Gómez, Hermenegildo | - |
dc.contributor.author | Gruttadauria, M. | - |
dc.contributor.author | Giacalone, F. | - |
dc.contributor.author | Aprile, C. | - |
dc.date.accessioned | 2020-04-16T10:05:56Z | - |
dc.date.available | 2020-04-16T10:05:56Z | - |
dc.date.issued | 2019-11-17 | - |
dc.identifier | doi: 10.1002/cplu.201900575 | - |
dc.identifier | issn: 2192-6506 | - |
dc.identifier.citation | ChemPlusChem 85(3): 391-398 (2019) | - |
dc.identifier.uri | http://hdl.handle.net/10261/207838 | - |
dc.description.abstract | 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. | - |
dc.language | eng | - |
dc.publisher | Wiley-VCH | - |
dc.relation.isversionof | Postprint | - |
dc.rights | openAccess | - |
dc.title | Tuneable Emission of Polyhedral Oligomeric Silsesquioxane Based Nanostructures that Self-Assemble in the Presence of Europium(III) Ions: Reversible trans-to-cis Isomerization | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1002/cplu.201900575 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1002/cplu.201900575 | - |
dc.date.updated | 2020-04-16T10:05:56Z | - |
dc.relation.csic | Sí | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
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Tuneable Emission of POSS.pdf | 703,87 kB | Adobe PDF | Visualizar/Abrir |
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