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Single-crystal to single-crystal structural transformation and photomagnetic properties of a porous iron(II) spin-crossover framework

hal.structure.identifierSchool of Chemistry
hal.structure.identifierSchool of Chemistry
dc.contributor.authorNEVILLE, Suzanne M.
hal.structure.identifierSchool of Chemistry
hal.structure.identifierMaterial Science Division [ANL] [MSD]
dc.contributor.authorHALDER, Gregory J.
hal.structure.identifierX-ray Science Division [XSD]
dc.contributor.authorCHAPMAN, Karena W.
hal.structure.identifierSchool of Chemistry
dc.contributor.authorDURISKA, Martin B.
hal.structure.identifierSchool of Chemistry
dc.contributor.authorSOUTHON, Peter D.
hal.structure.identifierSchool of Physics
dc.contributor.authorCASHION, John D.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
hal.structure.identifierSchool of Chemistry
dc.contributor.authorMOUBARAKI, Boujemaa
hal.structure.identifierSchool of Chemistry
dc.contributor.authorMURRAY, Keith S.
hal.structure.identifierSchool of Chemistry
dc.contributor.authorKEPERT, Cameron J.
dc.date.issued2008
dc.identifier.issn0002-7863
dc.description.abstractEnThe porous coordination framework material, Fe(NCS)2(bped)2·3EtOH, SCOF-3(Et) (where bped is DL-1,2-bis(4'-pyridyl)-1,2-ethanediol), displays a spin-crossover (SCO) transition that has been stimulated both thermally and by light irradiation. The one-step thermal SCO (70-180 K) is sensitive to the presence of molecular guests, with a more gradual transition (70-225 K) apparent following the desorption of ethanol molecules that hydrogen bond to the spin centers. Additional intraframework hydrogen-bonding interactions stabilize the vacant one-dimensional pore structure of the apohost, SCOF-3, despite a dramatic single-crystal to single-crystal (SC-SC) structural change upon removal of the guests. Comprehensive structural analyses throughout this transformation, from primitive orthorhombic (Pccn) to body-centered tetragonal (I4/mcm), reveal a flexing of the framework and a dilation of the channels, with an accompanying subtle distortion of the iron(II) coordination geometry. Photomagnetic measurements of the light-induced excited spin state trapping (LIESST) effect have been used to assess the degree of cooperativity in this system.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enSpin crossover
dc.subject.enSingle crystal
dc.subject.enFlexible framework
dc.subject.enPorous framework
dc.subject.enIron(II)
dc.title.enSingle-crystal to single-crystal structural transformation and photomagnetic properties of a porous iron(II) spin-crossover framework
dc.typeArticle de revue
dc.identifier.doi10.1021/ja077958f
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of the American Chemical Society
bordeaux.page2869-2876
bordeaux.volume130
bordeaux.issue9
bordeaux.peerReviewedoui
hal.identifierhal-00265577
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00265577v1
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