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Electronic structure of a spin crossover molecular adsorbate

hal.structure.identifierNebraska Center for Materials and Nanoscience
dc.contributor.authorZHANG, Xin
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPALAMARCIUC, Tatiana
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
hal.structure.identifierInstitut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]
dc.contributor.authorDOUDIN, Bernard
hal.structure.identifierCanadian Light Source Inc.
dc.contributor.authorWANG, Jian
hal.structure.identifierNebraska Center for Materials and Nanoscience
dc.contributor.authorDOWBEN, Peter A.
dc.date.issued2012
dc.identifier.issn0022-3654
dc.description.abstractEnWe have investigated the occupied and unoccupied electronic structure of ultrahigh vacuum (UHV) evaporated molecular thin films of the spin crossover [Fe(H2B(pz)2)2(bipy)] complex (with H2B(pz)2 = bis(hydrido)bis(1H-pyrazol-1-yl)borate and bipy = 2,2′-bipyridine) by ultraviolet photoelectron spectroscopy (UPS), inverse photoemission (IPES), and X-ray absorption spectroscopy (XAS). A bandgap of 2-3 eV is deduced from combined UPS and IPES measurements of the molecular films on Au substrates. The matching Fe XAS and IPES spectra indicate that the electronic unoccupied states have a significant Fe weight. The shift of the unoccupied density of states seen in inverse photoemission is consistent with the thermally induced spin crossover transition for [Fe(H2B(pz)2)2(bipy)] deposited on the organic ferroelectric copolymer poly(vinylidene fluoride) with trifluoroethylene (PVDF-TrFE).
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.subject.enThin films
dc.subject.enElectronic structure
dc.subject.enSpin crossover
dc.title.enElectronic structure of a spin crossover molecular adsorbate
dc.typeArticle de revue
dc.identifier.doi10.1021/jp3034962
dc.subject.halChimie/Matériaux
bordeaux.journalThe Journal of physical chemistry
bordeaux.page23291-23296
bordeaux.volume116
bordeaux.issue44
bordeaux.peerReviewedoui
hal.identifierhal-00751817
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00751817v1
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