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Thermal-, pressure- and light-induced spin-crossover behviour in the two-dimensional Hofman-like coordination polymer [Fe(3-Clpy)2Pd(CN)4]

hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorMARTÍNEZ, Víctor
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorCASTILLO, Zulema Arcís
hal.structure.identifierDepartamento de Física Aplicada [Universitat Politècnica de València]
dc.contributor.authorMUÑOZ, M. Carmen
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorGASPAR, Ana B.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorETRILLARD, Céline
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
hal.structure.identifierDonetsk Institute for Physics and Engineering named after A.A. Galkin
dc.contributor.authorTEREKHOV, Sergey A.
hal.structure.identifierDonetsk Institute for Physics and Engineering named after A.A. Galkin
dc.contributor.authorBUKIN, Gennadiy V.
hal.structure.identifierDonetsk Institute for Physics and Engineering named after A.A. Galkin
dc.contributor.authorLEVCHENKO, Georgiy
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorREAL, José Antonio
dc.date.issued2013
dc.identifier.issn1434-1948
dc.description.abstractEnThe thermal spin-crossover behaviour, photoexcitation and subsequent relaxation, as well as the pressure-induced spin-crossover behaviour at 298 K are discussed for the non-porous two-dimensional Hofmann-like coordination polymer [Fe(3-Clpy)2Pd(CN)4] (1). The title compound undergoes a two-step, cooperative thermal-induced SCO with critical temperatures Tc1↓ = 159.6 K and Tc1↑ = 164.5 K for the first step and Tc2↓ = 141.4 K and Tc2↑ = 148.4 K for the second step. Irradiation of the low-spin state with green light (514 nm) at 10 K induced the photoexcitation of around 60 % of the iron(II) centres to the high-spin state (LIESST effect). The subsequent cooperative relaxation processes were recorded at several temperatures and analysed. The effect of cooperativity on the photoexcitation was investigated by the LITH (light-induced thermal hysteresis) procedure. At 300 K, the coordination polymer 1 underwent a cooperative spin-crossover transition at around 0.6 GPa. The thermodynamic analysis of the pressure-induced SCO transition afforded the enthalpy and cooperativity parameters ΔHHL(p) = 22.01 kJ mol-1 and Γ(p) = 7.47 kJ mol-1, consistent with previous results.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enSpin crossover
dc.subject.enCoordination polymers
dc.subject.enPhotomagnetism
dc.subject.enAbsorption
dc.subject.enIron
dc.title.enThermal-, pressure- and light-induced spin-crossover behviour in the two-dimensional Hofman-like coordination polymer [Fe(3-Clpy)2Pd(CN)4]
dc.typeArticle de revue
dc.identifier.doi10.1002/ejic.201201097
dc.subject.halChimie/Matériaux
bordeaux.journalEuropean Journal of Inorganic Chemistry
bordeaux.page813-818
bordeaux.issue5-6
bordeaux.peerReviewedoui
hal.identifierhal-00794732
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00794732v1
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