Aviso: para depositar documentos, por favor, inicia sesión e identifícate con tu cuenta de correo institucional de la UCM con el botón MI CUENTA UCM. No emplees la opción AUTENTICACIÓN CON CONTRASEÑA
 

Reversible acidochromism and thermo-responsive luminescence properties of a novel Zn(II)/Eu(III) coordination polymer.

Simple item page
dc.contributor.authorCuerva de Alaiz, Cristian
dc.contributor.authorTapiador, Jesús
dc.contributor.authorSánchez Peláez, Ana Edilia
dc.contributor.authorTorralba Martínez, María Del Carmen
dc.contributor.authorGutiérrez Alonso, Ángel
dc.date.accessioned2025-01-23T12:58:48Z
dc.date.available2025-01-23T12:58:48Z
dc.date.issued2020-05-30
dc.descriptionEu(III) complexes exhibit a high quantum yield and a long-live emission, which make them suitable candidates for the preparation of novel advanced functional materials with sensorial abilities. It is well-known that the coordination of water, can cause a quenching of the Eu(III) emission bands by the antenna effect blocking, this effect is useful to detect water via luminescence spectroscopy in certain solvents or humid environments. However, it has also allowed to developed novel Eu(III) complexes with stimuli-responsive properties. The application of an external stimulus can induce the establishment of new intermolecular interactions, and coordinated water can be replaced by other chromophore ligands in order to revival the antenna effect. In this work, a new polymeric Zn(II)/Eu(III) compound with a flexible dicarboxylic salen-type ligand, N,N0 -ethylenebis(5-carboxysalicylideneamino), H4Salendc, has been obtained and its photophysical behaviour studied. The salen compound used as the ligand has been strategically functionalised with terminal carboxylic groups to favour the formation of coordinative –COO⋅⋅⋅Eu⋅⋅⋅OOC– bonds. Interestingly, it is possible to break and form again these short contacts upon exposure to several external stimuli, which originates dramatic changes in the luminescence properties of the complex. Structure/properties relationships have been studied in deep to understand the mechanisms of these processes; results could be of great interest for potential application in the field of thermo and acid sensors.
dc.description.abstractA new Zn(II)/Eu(III) compound with the N,N′-ethylenebis(5-carboxysalicylideneamino) ligand (H4Salendc) has been synthesised and its photophysical behaviour studied. This species, [Zn(Salendc)Eu(CH3COO)(DMSO)]·xH2O·0.5CH3CN (x = 3.5–4), has been characterised by XRD, XEDS and SEM and HTEM microscopies. Experimental results suggest the formation of a one-dimensional polymeric compound. The compound behaves as a luminescent material in the solid state. Moreover, it exhibits acidochromic properties upon the addition of a few drops of HCl and in the presence of its vapours. The emission intensity of the bands attributed to the Eu(III) ion can be also modulated by the temperature and by the presence of water, so that this species is a good candidate for its use as a luminescent acid, temperature and water sensor.
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipAssociate Laboratory for Green Chemistry – LAQV
dc.description.sponsorshipPROTEOMASS Scientific Society
dc.description.sponsorshipSpanish Foundation Alfonso Martín Escudero
dc.description.statuspub
dc.identifier.citationDyes and Pigments 181 (2020) 108587
dc.identifier.doi10.1016/j.dyepig.2020.108587
dc.identifier.officialurlhttps://http//www.elsevier.com/locate/dyepig
dc.identifier.relatedurlhttps://doi.org/10.1016/j.dyepig.2020.108587
dc.identifier.urihttps://hdl.handle.net/20.500.14352/115851
dc.journal.titleDyes and Pigments
dc.language.isoeng
dc.page.initial108587
dc.publisherElsevier Ltd.
dc.relation.projectIDFCT/ MCTES (UIDB/50006/2020)
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsrestricted access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu23
dc.subject.cdu33
dc.subject.cdu546
dc.subject.keywordAcidochromism
dc.subject.keywordSalen-type compounds
dc.subject.keywordLanthanides Coordination polymers
dc.subject.keywordSensors
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.unesco2303 Química Inorgánica
dc.subject.unesco2303 Química Inorgánica
dc.titleReversible acidochromism and thermo-responsive luminescence properties of a novel Zn(II)/Eu(III) coordination polymer.
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number181
dspace.entity.typePublication
relation.isAuthorOfPublication0376118d-4d5f-4c35-84ac-718b0178234c
relation.isAuthorOfPublicationb5123288-82d8-4996-8d90-b65b7afa53d9
relation.isAuthorOfPublication306d75e7-79de-4cd8-8695-767cd90e8eaf
relation.isAuthorOfPublication3c67a8f0-fba7-4ec5-9a6f-5d0f8bbcc20b
relation.isAuthorOfPublication.latestForDiscovery0376118d-4d5f-4c35-84ac-718b0178234c

Download

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Dyes and pigment 2020_23-05-20_vf.pdf
Size:
663.62 KB
Format:
Adobe Portable Document Format
downoload Download

Collections

Artículos