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Syntheses, structures, and magnetic properties of a novel mer-[(bbp)FeIII(CN)3]2- building block (bbp: bis(2-benzimidazolyl)pyridine dianion) and its related heterobimetallic Fe(III)-Ni(II) complexes

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPANJA, Anangamohan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGUIONNEAU, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJEON, Ie-Rang
hal.structure.identifierCenter for Nanoscience
hal.structure.identifierDepartment of Chemistry & Biochemistry
dc.contributor.authorHOLMES, Stephen M.
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
dc.date.issued2012
dc.identifier.issn0020-1669
dc.description.abstractEnA new symmetrical tricyanide building block mer-[Fe(bbp)(CN)(3)](2-) [1; bbp = bis(2-benzimidazolyl)pyridine dianion] has been prepared and structurally and magnetically characterized. It forms a new low-spin meridionally capped {Fe(III)L(CN)(3)} fragment with the tridentate bbp ligand. The reaction of 1 with Ni(II) salts in the presence of various ancillary ligands affords several new cyanido-bridged complexes: a trinuclear complex {[Ni(ntb)(MeOH)](2)[Fe(bbp)(CN)(3)][ClO(4)](2)}*2MeOH (2), a tetranuclear compound {[Ni(tren)](2)[Fe(bbp)(CN)(3)](2)}*7MeOH (3), and a one-dimensional heterobimetallic system: {[Ni(dpd)(2)](2)[Fe(bbp)(CN)(3)](2)}*9MeOH*3H(2)O (4) [ntb = tris(2-benzimidazolylmethyl)amine, tren = tris(2-aminoethyl)amine, and dpd = 2,2-dimethyl-1,3-propanediamine]. The structural data shows that 2 is a linear complex in which a central Fe(III) ion links two adjacent Ni(II) ions via axial cyanides, while 3 is a molecular square that contains cyanido-bridged Ni(II) and Fe(III) ions at alternate corners. Complex 4 is a one-dimensional system that is composed of alternating cyanido-bridged Ni(II) and Fe(III) centers. Compounds 2-4 display extensive hydrogen bonding and moderately strong π-π stacking interactions in the solid state. Magnetic studies show that ferromagnetic exchange is operative within the Fe(III)(LS)(μ-CN)Ni(II) units of 2-4.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enTricyanide
dc.subject.enChemical synthesis
dc.subject.enChemical structure
dc.subject.enMagnetic properties
dc.title.enSyntheses, structures, and magnetic properties of a novel mer-[(bbp)FeIII(CN)3]2- building block (bbp: bis(2-benzimidazolyl)pyridine dianion) and its related heterobimetallic Fe(III)-Ni(II) complexes
dc.typeArticle de revue
dc.identifier.doi10.1021/ic301661x
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Chemistry
bordeaux.page12350-12359
bordeaux.volume51
bordeaux.issue22
bordeaux.peerReviewedoui
hal.identifierhal-00761560
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00761560v1
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