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Heterometallic heptanuclear [Cu5Ln2] (Ln = Tb, Dy, and Ho) single-molecule magnets organized in one-dimensional coordination polymeric network

hal.structure.identifierDepartment of Chemistry [Kanpur] [IIT Kanpur]
hal.structure.identifierTIFR Centre for Interdisciplinary Sciences [Hyderabad] [TCIS]
dc.contributor.authorDEY, Atanu
hal.structure.identifierDepartment of Chemistry [Kanpur] [IIT Kanpur]
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorDAS, Sourav
hal.structure.identifierDepartment of Chemistry [Kanpur] [IIT Kanpur]
dc.contributor.authorKUNDU, Subrata
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
hal.structure.identifierSolid State and Structural Chemistry Unit
dc.contributor.authorMONDAL, Abhishake
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorROUZIÈRES, Mathieu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATHONIÈRE, Corine
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorCLÉRAC, Rodolphe
hal.structure.identifierTIFR Centre for Interdisciplinary Sciences [Hyderabad] [TCIS]
dc.contributor.authorSURIYA NARAYANAN, Ramakirushnan
hal.structure.identifierDepartment of Chemistry [Kanpur] [IIT Kanpur]
hal.structure.identifierTIFR Centre for Interdisciplinary Sciences [Hyderabad] [TCIS]
dc.contributor.authorCHANDRASEKHAR, Vadapalli
dc.date.issued2017-11-16
dc.identifier.issn0020-1669
dc.description.abstractEnThe reaction of a multisite coordination ligand, LH3, with Cu(II) salts and Ln(NO3)3·nH2O in a 1:2:1 stoichiometric ratio in the presence of triethylamine was found to afford a series of one-dimensional heterometallic [{Cu5Ln2(L)2(μ3-OH)4(ClO4)(NO3)3(OH2)5}(ClO4)2(H2O)x]∞ [Ln = Tb(1), Dy(2) and Ho(3), x = 4.25, 5.5, and 5 for 1-3, respectively] coordination polymers. Complexes 1-3 have been characterized by single crystal X-ray crystallography. The detailed study of the magnetic properties has also been performed and compared with the parent [Cu5Ln2] molecular analogues. The ac susceptibility measurements for complexes 1-3 confirm their SMM behavior with the following characteristics: Δeff/kB = 23.4 K, τ0 = 1.1 × 10-6 s and Δeff/kB = 27.9 K, τ0 = 6.6 × 10-7 s under 0 and 1200 Oe dc fields, respectively for 1; Δeff/kB = 8.3 K, τ0 = 3.1 × 10-6 s for 2 under 0 dc field. For 3, the fast QTM below 4 K prevents the estimation of the SMM energy barrier. Remarkably, the magnetic and SMM properties of the previously reported molecular [Cu5Ln2] analogues are preserved after their assembly in these coordination networks.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enHeterometallic heptanuclear [Cu5Ln2] (Ln = Tb, Dy, and Ho) single-molecule magnets organized in one-dimensional coordination polymeric network
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.inorgchem.7b02450
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Chemistry
bordeaux.page14612-14623
bordeaux.volume56
bordeaux.issue23
bordeaux.peerReviewedoui
hal.identifierhal-01666301
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01666301v1
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