Confinement of a Styryl Dye into Nanoporous Aluminophosphates: Channels vs. Cavities
dc.contributor.author | Oliden Sánchez, Ainhoa | |
dc.contributor.author | Sola Llano, Rebeca | |
dc.contributor.author | Pérez Pariente, Joaquín | |
dc.contributor.author | Gómez Hortigüela, Luis | |
dc.contributor.author | Martínez Martínez, Virginia | |
dc.date.accessioned | 2024-04-12T15:19:51Z | |
dc.date.available | 2024-04-12T15:19:51Z | |
dc.date.issued | 2024-03-22 | |
dc.identifier.citation | International Journal of Molecular Sciences 25(7) : (2024) // Article ID 3577 | es_ES |
dc.identifier.issn | 1422-0067 | |
dc.identifier.uri | http://hdl.handle.net/10810/66644 | |
dc.description.abstract | Styryl dyes are generally poor fluorescent molecules inherited from their flexible molecular structures. However, their emissive properties can be boosted by restricting their molecular motions. A tight confinement into inorganic molecular sieves is a good strategy to yield highly fluorescent hybrid systems. In this work, we compare the confinement effect of two Mg-aluminophosphate zeotypes with distinct pore systems (the AEL framework, a one-dimensional channeled structure with elliptical pores of 6.5 Å × 4.0 Å, and the CHA framework, composed of large cavities of 6.7 Å × 10.0 Å connected by eight-ring narrower windows) for the encapsulation of 4-DASPI styryl dye (trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide). The resultant hybrid systems display significantly improved photophysical features compared to 4-DASPI in solution as a result of tight confinement in both host inorganic frameworks. Molecular simulations reveal a tighter confinement of 4-DASPI in the elliptical channels of AEL, explaining its excellent photophysical properties. On the other hand, a singular arrangement of 4-DASPI dye is found when confined within the cavity-based CHA framework, where the 4-DASPI molecule spans along two adjacent cavities, with each aromatic ring sitting on these adjacent cavities and the polymethine chain residing within the narrower eight-ring window. However, despite the singularity of this host–guest arrangement, it provides less tight confinement for 4-DASPI than AEL, resulting in a slightly lower quantum yield. | es_ES |
dc.description.sponsorship | This work was partially financed by the Spanish State Research Agency (Agencia Española de Investigación, AEI, MCIN/AEI/10.13039/501100011033, through projects PID2020-114347RB-C32, PID2019-107968RB-I00, and PID2022-138481NB-I00), Gobierno Vasco—Eusko Jaurlaritza (project IT1639-22), and the European Regional Development Fund (Fondo Europeo de Desarrollo Regional, FEDER). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2020-114347RB-C32 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2019-107968RB-I00 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2022-138481NB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/es/ | |
dc.subject | styryl dyes | es_ES |
dc.subject | aluminophosphates | es_ES |
dc.subject | photoactive hybrid systems | es_ES |
dc.subject | MgAPO | es_ES |
dc.subject | AEL framework | es_ES |
dc.subject | CHA framework | es_ES |
dc.subject | fluorescence | es_ES |
dc.subject | nanochannels | es_ES |
dc.subject | cavities | es_ES |
dc.subject | molecular sieves | es_ES |
dc.title | Confinement of a Styryl Dye into Nanoporous Aluminophosphates: Channels vs. Cavities | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2024-04-12T13:14:32Z | |
dc.rights.holder | © 2024 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 (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1422-0067/25/7/3577 | es_ES |
dc.identifier.doi | 10.3390/ijms25073577 | |
dc.departamentoes | Química física | |
dc.departamentoeu | Kimika fisikoa |
Files in this item
This item appears in the following Collection(s)
Except where otherwise noted, this item's license is described as © 2024 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 (https://creativecommons.org/licenses/by/ 4.0/).