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Electronic and structural dynamics during the switching of the photomagnetic complex [Fe(L222N5)(CN)2]

hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorZERDANE, Serhane
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCOLLET, Eric
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorDONG, X.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATAR, Samir F.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWANG, Hongfeng F.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDESPLANCHES, Cédric
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHASTANET, Guillaume
hal.structure.identifierSLAC National Accelerator Laboratory [SLAC]
dc.contributor.authorCHOLLET, Matthieu
hal.structure.identifierSLAC National Accelerator Laboratory [SLAC]
dc.contributor.authorGLOWNIA, James M.
hal.structure.identifierSLAC National Accelerator Laboratory [SLAC]
dc.contributor.authorLEMKE, Henrik T.
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorLORENC, Maciej
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCAMMARATA, Marco
dc.date.issued2018-04-06
dc.identifier.issn0947-6539
dc.description.abstractEnThe [Fe(L N )(CN) ] compound, where L N refers to the macrocyclic Schiff-base ligand, 2,13-dimethyl-3,6,9,-12,18-pentaazabicyclo[12.3.1]octadeca-1(18),2,12,14,- 16-pentaene, is a photomagnetic Fe based coordination compound, which undergoes light-induced excited spin-state trapping (LIESST). The low spin state is hexacoordinated and the high spin state heptacoordinated. This system also serves as complex for the design of trinuclear or one-dimensional compounds made of other types of bricks with diverse coordinated metals. Here its ultrafast spin-state photoswitching dynamics are studied, by combining femtosecond optical spectroscopy and femtosecond X-ray absorption measurements at the XPP station of the X-ray free-electron laser LCLS. DFT and TD-DFT calculations are used to interpret experimental findings. These studies, performed in the solution phase, show that LIESST in [Fe(L N )(CN) ] occurs on the 100 fs timescale under different types of photoexcitation. In addition, coherent oscillations were observed, resulting from the structural dynamics accompanying LIESST, which were recently evidenced in more conventional octahedral Fe N systems.
dc.description.sponsorshipEtude femtoseconde rayons X et optique de la dynamique ultrarapide de photocommutation de matériaux moléculaires magnétiques
dc.description.sponsorshipCaractérisation d'états intermédiaires de protéines fluorescentes en utilisant des lasers à électrons libres X et les spectroscopies UV-visible et infrarouge ultra-rapides - ANR-15-CE32-0004
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.entime-resolved spectroscopy
dc.subject.enintersystem crossing
dc.subject.enspin crossover
dc.subject.enLIESST
dc.subject.enX-ray absorption spectroscopy
dc.title.enElectronic and structural dynamics during the switching of the photomagnetic complex [Fe(L222N5)(CN)2]
dc.typeArticle de revue
dc.identifier.doi10.1002/chem.201704746
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
bordeaux.journalChemistry - A European Journal
bordeaux.page5064-5069
bordeaux.volume24
bordeaux.issue20
bordeaux.peerReviewedoui
hal.identifierhal-01636242
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01636242v1
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