Mostrar el registro sencillo del ítem

Geometry Flexibility of Copper Iodide Clusters: Variability in Luminescence Thermochromism.

hal.structure.identifierLaboratoire de physique de la matière condensée [LPMC]
dc.contributor.authorBENITO, Quentin
hal.structure.identifierLaboratoire de chimie moléculaire [LCM]
dc.contributor.authorLE GOFF, X.
hal.structure.identifierLaboratoire de chimie moléculaire [LCM]
dc.contributor.authorNOCTON, Gregory
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGUES, Alexandre
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGARCIA, Alain
hal.structure.identifierUniversité européenne de Bretagne - European University of Brittany [UEB]
hal.structure.identifierInstitut des Sciences Chimiques de Rennes [ISCR]
dc.contributor.authorBERHAULT, Aurélie
hal.structure.identifierInstitut des Sciences Chimiques de Rennes [ISCR]
hal.structure.identifierUniversité européenne de Bretagne - European University of Brittany [UEB]
dc.contributor.authorKAHLAL, Samia
hal.structure.identifierInstitut des Sciences Chimiques de Rennes [ISCR]
hal.structure.identifierUniversité européenne de Bretagne - European University of Brittany [UEB]
dc.contributor.authorSAILLARD, Jean-Yves
hal.structure.identifierInstitut Lavoisier de Versailles [ILV]
dc.contributor.authorMARTINEAU, Charlotte
hal.structure.identifierUniversité de Lille, Sciences et Technologies
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorTRÉBOSC, Julien
hal.structure.identifierLaboratoire de physique de la matière condensée [LPMC]
dc.contributor.authorGACOIN, Thierry
hal.structure.identifierLaboratoire de physique de la matière condensée [LPMC]
dc.contributor.authorBOILOT, Jean-Pierre
hal.structure.identifierLaboratoire de physique de la matière condensée [LPMC]
dc.contributor.authorPERRUCHAS, Sandrine
dc.date.issued2015
dc.identifier.issn0020-1669
dc.description.abstractEnAn original copper(I) iodide cluster of novel geometry obtained by using a diphosphine ligand is reported and is formulated [Cu6I6(PPh2(CH2)3PPh2)3] (1). Interestingly, this sort of “eared cubane” cluster based on the [Cu6I6] inorganic core can be viewed as a combination of the two known [Cu4I4] units, namely, the cubane and the open-chair isomeric geometries. The synthesis, structural and photophysical characterisations, as well as theoretical study of this copper iodide along with the derived cubane (3) and open-chair (2) [Cu4I4(PPh3)4] forms, were investigated. A new polymorph of the cubane [Cu4I4(PPh3)4] cluster is indeed presented (3). The structural differences of the clusters were analyzed by solid-state nuclear magnetic resonance spectroscopy. Luminescence properties of the three clusters were studied in detail as a function of the temperature showing reversible luminescence thermochromism for 1 with an intense orange emission at room temperature. This behavior presents different feature compared to the cubane cluster and completely contrasts with the open isomer, which is almost nonemissive at room temperature. Indeed, the thermochromism of 1 differs by a concomitant increase of the two emission bands by lowering the temperature, in contrast to an equilibrium phenomenon for 3. The luminescence properties of 2 are very different by exhibiting only one single band when cooled. To rationalize the different optical properties observed, density functional theory calculations were performed for the three clusters giving straightforward explanation for the different luminescence thermochromism observed, which is attributed to different contributions of the ligands to the molecular orbitals. Comparison of 3 with its [Cu4I4(PPh3)4] cubane polymorphs highlights the sensibility of the emission properties to the cuprophilic interactions.
dc.description.sponsorshipIRradiations Multiple-résonance en RMN pour la caractérisation structurale haute-résolution de MAtériaux Fluorés - ANR-12-JS08-0008
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enGeometry Flexibility of Copper Iodide Clusters: Variability in Luminescence Thermochromism.
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.inorgchem.5b00321
dc.subject.halChimie
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Chemistry
bordeaux.page4483-4494
bordeaux.volume54
bordeaux.issue9
bordeaux.peerReviewedoui
hal.identifierhal-01141761
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01141761v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Inorganic%20Chemistry&rft.date=2015&rft.volume=54&rft.issue=9&rft.spage=4483-4494&rft.epage=4483-4494&rft.eissn=0020-1669&rft.issn=0020-1669&rft.au=BENITO,%20Quentin&LE%20GOFF,%20X.&NOCTON,%20Gregory&FARGUES,%20Alexandre&GARCIA,%20Alain&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem