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Dimensionality switching through a thermally induced reversible single-crystal-to-single-crystal phase transition in a cyanide complex.

hal.structure.identifierInorganic Chemistry Laboratory-Faculty of Chemistry
dc.contributor.authorGHEORGHE, Ruxandra
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorKALISZ, Marguerite
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorCLÉRAC, Rodolphe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATHONIÈRE, Corine
hal.structure.identifierInstitut Parisien de Chimie Moléculaire [IPCM]
dc.contributor.authorHERSON, Patrick
hal.structure.identifierInstitut Parisien de Chimie Moléculaire [IPCM]
dc.contributor.authorLI, Yanling
hal.structure.identifierInstitut Parisien de Chimie Moléculaire [IPCM]
dc.contributor.authorSEULEIMAN, Mannan
hal.structure.identifierInstitut Parisien de Chimie Moléculaire [IPCM]
dc.contributor.authorLESCOUËZEC, Rodrigue
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorLLORET, Francesc
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorJULVE, Miguel
dc.date.issued2010
dc.identifier.issn0020-1669
dc.description.abstractEnThe heterometallic hexanuclear cyanide-bridged complex {[Mn(bpym)(H(2)O)](2)[Fe(HB(pz)(3))(CN)(3)](4)} (1), its C(15)N and D(2)O enriched forms {[Mn(bpym)(H(2)O)](2)[Fe(HB(pz)(3))(C(15)N)(3)](4)} (2) and {[Mn(bpym)(D(2)O)](2)[Fe(HB(pz)(3))(CN)(3)](4)} (3), and the hexanuclear derivative complex {[Mn(bpym)(H(2)O)](2)[Fe(B(pz)(4))(CN)(3)](4)}*4H(2)O (4) [bpym = 2,2'-bipyrimidine, HB(pz)(3)(-) = hydrotris(1-pyrazolyl)borate, B(pz)(4)(-) = tetra(1-pyrazolyl)borate] have been synthesized. Their structures have been determined through single-crystal X-ray crystallography at different temperatures. Whereas 3 and 4 maintain a discrete hexanuclear motif during the entire temperature range investigated (down to 95 K), 1 and 2 exhibit a thermally induced reversible single-crystal to single-crystal phase transition driven by a remarkable concerted rearrangement of hydrogen and cyanide coordination bonds. While hexanuclear complexes are observed in the high temperature phases (noted 1a and 2a) above 200 K, the low temperature phases are composed of one-dimensional coordination polymers noted 1b and 2b. The magnetic properties of the four compounds have been investigated in the 2-300 K range, and they reveal the occurrence of an overall antiferromagnetic behavior. The thermal dependence of the optical reflectivity and the FT-IR absorbance have been studied for 1 in the range 10-300 K and 130-300 K, respectively. A comparative analysis of the structural and electronic properties for 1-4 clearly underlines the major role of the intermolecular interactions in the topological and dimensional rearrangement observed during the structural phase transition. This result opens new perspectives in the design of cyanide-based switchable magnetic materials using coordination bonds rearrangements.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enDimensionality switching through a thermally induced reversible single-crystal-to-single-crystal phase transition in a cyanide complex.
dc.typeArticle de revue
dc.identifier.doi10.1021/ic1015725
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Chemistry
bordeaux.page11045-11056
bordeaux.volume49
bordeaux.issue23
bordeaux.peerReviewedoui
hal.identifierhal-00553915
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00553915v1
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