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Synchrotron-based Mössbauer spectroscopy characterization of sublimated spin crossover molecules

hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
hal.structure.identifierNational Interuniversity Consortium of Materials Science and Technology [INSTM ]
dc.contributor.authorCINI, Alberto
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPOGGINI, Lorenzo
hal.structure.identifierEuropean Synchrotron Radiation Facility [ESRF]
dc.contributor.authorCHUMAKOV, Alexander
hal.structure.identifierEuropean Synchrotron Radiation Facility [ESRF]
dc.contributor.authorRUFFER, Rudolf
hal.structure.identifierNational Interuniversity Consortium of Materials Science and Technology [INSTM ]
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorSPINA, Gabriele
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGONIDEC, Mathieu
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
hal.structure.identifierNational Interuniversity Consortium of Materials Science and Technology [INSTM ]
dc.contributor.authorFITTIPALDI, Maria
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
hal.structure.identifierNational Interuniversity Consortium of Materials Science and Technology [INSTM ]
dc.contributor.authorMANNINI, Matteo
dc.date.issued2020-03-25
dc.identifier.issn1463-9076
dc.description.abstractEnThe spin crossover (SCO) efficiency of [57Fe(bpz)2(phen)] (where bpz = bis(pyrazol-1-yl)borohydride and phen = 9,10-phenantroline) molecules deposited on gold substrates was investigated by means of synchrotron Mössbauer spectroscopy. The spin transition was driven thermally, or light induced via the LIESST (light induced excited spin-state trapping) effect. Both sets of measurements show that, once deposited on a gold substrate, the efficiency of the SCO mechanism is modified with respect to molecules in the bulk phase. A correlation in the distribution of hyperfine parameters in the sublimated films, not evidenced so far in the bulk phase, is reported. This translates into geometrical distortions of the first coordination sphere of the iron atom that seem to correlate with the decreased spin conversion. The work reported clearly shows the potentiality of synchrotron Mössbauer spectroscopy for the characterization of nanostructured Fe-based SCO systems, thus resulting as a key tool in view of their applications in innovative nanoscale devices.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enSynchrotron-based Mössbauer spectroscopy characterization of sublimated spin crossover molecules
dc.typeArticle de revue
dc.identifier.doi10.1039/C9CP04464G
dc.subject.halChimie/Matériaux
bordeaux.journalPhysical Chemistry Chemical Physics
bordeaux.page6626-6637
bordeaux.volume22
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-02558753
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02558753v1
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