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hal.structure.identifierDepartment of Chemistry
dc.contributor.authorSHEPHERD, Helena
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorVENDIER, Laure
hal.structure.identifierDIAMOND Light source
dc.contributor.authorCASATI, Nicola
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorBOUSSEKSOU, Azzedine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGUIONNEAU, Philippe
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorMOLNÁR, Gábor
dc.date.issued2012
dc.identifier.issn1463-9076
dc.description.abstractEnThe effect of pressure on the dinuclear spin crossover material [{Fe(bpp)(NCS)(2)}(2)(4,4'-bipy)]*2MeOH (where bpp = 2,6-bis(pyrazol-3-yl)pyridine and 4,4'-bipy = 4,4'-bipyridine, 1) has been investigated with single crystal X-ray diffraction and Raman spectroscopy using diamond anvil cell techniques. The very gradual pressure-induced spin crossover occurs between 7 and 25 kbar, and shows no evidence of crystallographic phase transitions. The pressure-induced spin transition leads to a complete LS state which is not thermally accessible. This structural evolution under pressure is in stark contrast to the previously reported thermal spin crossover behaviour, in which a symmetry-breaking, purely structural phase transition results in only partial conversion to the low spin state. This observation is attributed to the symmetry-breaking phase transition becoming unfavourable under pressure.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enMolecular materials
dc.subject.enSpin crossover
dc.subject.enHigh pressure
dc.subject.enIron
dc.title.enHigh-pressure spin-crossover in a dinuclear Fe(ii) complex.
dc.typeArticle de revue
dc.identifier.doi10.1039/c2cp23940j
dc.subject.halChimie/Matériaux
bordeaux.journalPhysical Chemistry Chemical Physics
bordeaux.page5265-5271
bordeaux.volume14
bordeaux.issue15
bordeaux.peerReviewedoui
hal.identifierhal-00682930
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00682930v1
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