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Synthesis, structural and magnetic characterizations of new complexes of di-2,6-(2-pyridylcarbonyl)pyridine (pyCOpyCOpy) ligand

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCALANCEA, Sergui
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorPIÑERO CRUZ, Dalice M.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPOIROT, David
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATHONIÈRE, Corine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorCLÉRAC, Rodolphe
hal.structure.identifierFacultad de Química
dc.contributor.authorPEJO, Carolina
hal.structure.identifierFacultad de Química
dc.contributor.authorCHIOZZONE, Raúl
hal.structure.identifierInstituto de Ciencia Molecular [ICMol]
dc.contributor.authorLLORET, Francesc
hal.structure.identifierFacultad de Química
dc.contributor.authorGONZÁLEZ, Ricardo
dc.date.issued2013
dc.identifier.issn0277-5387
dc.description.abstractEnUsing the di-2,6-(2-pyridylcarbonyl)pyridine ligand (L1) as starting framework, five new mononuclear complexes were obtained: [Cu(L1)(MeCN)(ClO4)2] (1) [Co(L1)(MeCN)(Br)2]*MeCN (2), [Fe(L1)2](BF4)2*MeOH*H2O (3), [Cr(L2a)Cl2]*2MeOH (where HL2a is (6-(hydroxyl(methoxy)(pyridin-2-yl)methyl)pyridin-2-yl)(pyridin-2-yl)methanone) (4) and one trinuclear [NiII3] complex, [Ni3(L2b)2(Bz)2(EtOH)2](ClO4)2*2EtOH (where HL2b is (6-(hydroxyl(ethoxy)(pyridin-2-yl)methyl)pyridin-2-yl)(pyridin-2-yl)methanone; Bz = benzoato) (5). Their structural and magnetic characterizations are herein reported. All the metal ions show octahedral coordination geometry, which is slightly unusual for the L1-based Cu(II) complex 1. Formation of complexes 4 and 5 is accompanied by the metal-assisted solvent addition to one carbonyl group of the L1 ligand with methanol or ethanol leading to the deprotonated mono-hemiacetals L2a and L2b ligands respectively. The trinuclear [NiII3] compound 5 shows two different bridging units: two L2b units and two benzoato (Bz) ligands. 5 represents the smallest polynuclear compound in the known {NiII(L1-based)}n (n = 5, 6) series. The magnetic properties of the five complexes have been investigated. While compounds 1-4 show the expected magnetic behavior for mononuclear species, 5 exhibits intramolecular ferromagnetic interactions between the NiII (S = 1) ions stabilizing an ST = 3 ground state.
dc.language.isoen
dc.publisherElsevier
dc.subject.enCoordination compounds
dc.subject.enCrystal structures
dc.subject.enMagnetic properties
dc.subject.enMetal-assisted solvent addition
dc.title.enSynthesis, structural and magnetic characterizations of new complexes of di-2,6-(2-pyridylcarbonyl)pyridine (pyCOpyCOpy) ligand
dc.typeArticle de revue
dc.identifier.doi10.1016/j.poly.2013.05.021
dc.subject.halChimie/Matériaux
bordeaux.journalPolyhedron
bordeaux.page294-303
bordeaux.volume64
bordeaux.peerReviewedoui
hal.identifierhal-00867107
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00867107v1
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