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Three-dimensional porous metal-radical frameworks based on triphenylmethyl radicals.

hal.structure.identifierInstitut de Ciència de Materials de Barcelona [ICMAB]
hal.structure.identifierNetworking Research Center on Bioengineering, Biomaterials and Nanomedicine
dc.contributor.authorDATCU, Angela
hal.structure.identifierInstitut de Ciència de Materials de Barcelona [ICMAB]
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorROQUES, Nans
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJUBERA, Veronique
hal.structure.identifierCentre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
hal.structure.identifierInstitució Catalana de Recerca i Estudis Avançats = Catalan Institution for Research and Advanced Studies [ICREA]
dc.contributor.authorMASPOCH, Daniel
hal.structure.identifierServeis Tecnics de Recerca
dc.contributor.authorFONTRODONA, Xavier
hal.structure.identifierInstitut für Allgemeine Anorganische und Teoretische Chemie
dc.contributor.authorWURST, Klaus
hal.structure.identifierCentre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
dc.contributor.authorIMAZ, Inhar
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorMOUCHAHAM, Georges
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorSUTTER, Jean-Pascal
hal.structure.identifierInstitut de Ciència de Materials de Barcelona [ICMAB]
hal.structure.identifierNetworking Research Center on Bioengineering, Biomaterials and Nanomedicine
dc.contributor.authorROVIRA, Concepció
hal.structure.identifierInstitut de Ciència de Materials de Barcelona [ICMAB]
hal.structure.identifierNetworking Research Center on Bioengineering, Biomaterials and Nanomedicine
dc.contributor.authorVECIANA, Jaume
dc.date.issued2012
dc.identifier.issn0947-6539
dc.description.abstractEnLanthanide coordination polymers {[Ln(PTMTC)(EtOH)(2) H(2) O]⋅x H(2) O, y EtOH} [Ln=Tb (1), Gd (2), and Eu (3)] and {[Ln(αHPTMTC)(EtOH)(2) H(2) O]⋅x H(2) O, y EtOH} [Ln=Tb (1'), Gd (2'), and Eu (3')] have been prepared by reacting Ln(III) ions with tricarboxylate-perchlorotriphenylmethyl/methane ligands that have a radical (PTMTC(3-) ) or closed-shell (αHPTMTC(3-) ) character, respectively. X-ray diffraction analyses reveal 3D architectures that combine helical 1D channels and a fairly rare (6,3) connectivity described with the (4(2) .8)⋅(4(4) .6(2) .8(5) .10(4) ) Schäfli symbol. Such 3D architectures make these polymers porous solids upon departure of the non-coordinated guest-solvent molecules as confirmed by the XRD structure of the guest-free [Tb(PTMTC)(EtOH)(2) H(2) O] and [Tb(αHPTMTC)(EtOH)(2) H(2) O] materials. Accessible voids represent 40 % of the cell volume. Metal-centered luminescence was observed in Tb(III) and Eu(III) coordination polymers 1' and 3', although the Ln(III) -ion luminescence was quenched when radical ligands were involved. The magnetic properties of all these compounds were investigated, and the nature of the {Ln-radical} (in 1 and 2) and the {radical-radical} exchange interactions (in 3) were assessed by comparing the behaviors for the radical-based coordination polymers 1-3 with those of the compounds with the diamagnetic ligand set. Whilst antiferromagnetic {radical-radical} interactions were found in 3, ferromagnetic {Ln-radical} interactions propagated in the 3D architectures of 1 and 2.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enLanthanides
dc.subject.enMagnetism
dc.subject.enMetal-organic frameworks
dc.subject.enPorosity
dc.subject.enRadicals
dc.title.enThree-dimensional porous metal-radical frameworks based on triphenylmethyl radicals.
dc.typeArticle de revue
dc.identifier.doi10.1002/chem.201102278
dc.subject.halChimie/Matériaux
bordeaux.journalChemistry - A European Journal
bordeaux.page152-62
bordeaux.volume18
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00659772
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00659772v1
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