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Formation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistry

hal.structure.identifierDanmarks Tekniske Universitet = Technical University of Denmark [DTU]
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorPEDERSEN, Kasper
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPERLEPE, Panagiota
hal.structure.identifierDepartment of Chemistry [Berkeley]
dc.contributor.authorAUBREY, Michael
hal.structure.identifierDepartment of Chemistry, University of Oxford
dc.contributor.authorWOODRUFF, Daniel
hal.structure.identifierMolecular Fondry [LBNL Berkeley]
hal.structure.identifierDepartment of Physics [Berkeley]
hal.structure.identifierDepartamento de Ciencias Fisicas [Santiago de Chile]
dc.contributor.authorREYES-LILLO, Sebastian
hal.structure.identifierDepartment of Chemistry [Copenhagen]
dc.contributor.authorREINHOLDT, Anders
hal.structure.identifierDanmarks Tekniske Universitet = Technical University of Denmark [DTU]
dc.contributor.authorVOIGT, Laura
hal.structure.identifierCentre for Storage Ring Facilities [Aarhus] [ISA]
dc.contributor.authorLI, Zheshen
hal.structure.identifierCenter for Materials Crystallography (CMC), Interdisciplinary Nanoscience Center (iNANO)
dc.contributor.authorBORUP, Kasper
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorROUZIÈRES, Mathieu
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorSAMOHVALOV, Dumitru
hal.structure.identifierEuropean Synchrotron Radiation Facility [ESRF]
dc.contributor.authorWILHELM, Fabrice
hal.structure.identifierEuropean Synchrotron Radiation Facility [ESRF]
dc.contributor.authorROGALEV, Andrei
hal.structure.identifierUniversity of California [Berkeley] [UC Berkeley]
hal.structure.identifierDepartment of Physics [Berkeley]
hal.structure.identifierKavli Energy Nanosciences Institute at Berkeley
dc.contributor.authorNEATON, Jeffrey
hal.structure.identifierDepartment of Chemistry [Berkeley]
hal.structure.identifierDepartment of Chemical & Biomolecular Engineering [Berkeley] [CBE]
hal.structure.identifierMaterials Science Division [LBNL Berkeley]
dc.contributor.authorLONG, Jeffrey
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorCLÉRAC, Rodolphe
dc.date.issued2018-10
dc.identifier.issn1755-4330
dc.description.abstractEnThe unique properties of graphene, transition-metal dichalcogenides and other two-dimensional (2D) materials have boosted interest in layered coordination solids. In particular, 2D materials that behave as both conductors and magnets could find applications in quantum magnetoelectronics and spintronics. Here, we report the synthesis of CrCl2(pyrazine)2, an air-stable layered solid, by reaction of CrCl2 with pyrazine (pyz). This compound displays a ferrimagnetic order below ∼55 K, reflecting the presence of strong magnetic interactions. Electrical conductivity measurements demonstrate that CrCl2(pyz)2 reaches a conductivity of 32 mS cm–1 at room temperature, which operates through a 2D hopping-based transport mechanism. These properties are induced by the redox-activity of the pyrazine ligand, which leads to a smearing of the Cr 3d and pyrazine π states. We suggest that the combination of redox-active ligands and reducing paramagnetic metal ions represents a general approach towards tuneable 2D materials that consist of charge-neutral layers and exhibit both long-range magnetic order and high electronic conductivity.
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enFormation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistry
dc.typeArticle de revue
dc.identifier.doi10.1038/s41557-018-0107-7
dc.subject.halChimie/Matériaux
bordeaux.journalNature Chemistry
bordeaux.page1056-1061
bordeaux.volume10
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-02177131
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02177131v1
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