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Neutron powder diffraction studies of two spin transition Fe(II)-complexes under pressure

hal.structure.identifierInstitut Laue-Langevin [ILL]
dc.contributor.authorLEGRAND, Vincent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLE GAC, Frédéric
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGUIONNEAU, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
dc.date.issued2008
dc.identifier.issn0021-8898
dc.description.abstractEnThe pressure dependences of the lattice parameters of two spin transition compounds have been derived from neutron powder diffraction measurements at ambient temperature. The study of Fe(PM–AzA)2(NCS)2 [PM is N-20-pyridylmethylene and AzA is 4-(phenylazo)aniline] has been used to validate this new type of investigation of spin crossover compounds, and the study of Fe(PM–BiA)2(NCS)2 (BiA is 4-aminobiphenyl) has allowed the atypical spin crossover behaviour of this compound under pressure to be explained. In addition, this complex exhibits a pressure-induced structural transition with an associated symmetry change, inducing the transformation of Fe(PM–BiA)2-(NCS)2 into a different polymorph that avoids a first-order spin transition in favour of continuous transition.
dc.language.isoen
dc.publisherInternational Union of Crystallography
dc.subject.enSpin crossover complexes
dc.subject.enPhase transitions
dc.subject.enPressure effects
dc.subject.enNeutron diffraction
dc.subject.enPressure effects
dc.title.enNeutron powder diffraction studies of two spin transition Fe(II)-complexes under pressure
dc.typeArticle de revue
dc.identifier.doi10.1107/S0021889808006481
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]
dc.subject.halSciences de l'ingénieur [physics]/Matériaux
dc.subject.halChimie/Cristallographie
bordeaux.journalJournal of Applied Crystallography
bordeaux.page637-640
bordeaux.volume41
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-01007103
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01007103v1
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