0000000000624822

AUTHOR

Gaelle Dupouy

showing 3 related works from this author

Photoinduced HS state in the first spin-crossover chain containing a cyanocarbanion as bridging ligand

2009

A new polymeric approach, based on cyanocarbanion ligands, for the design of spin crossover (SCO) compounds led us to the compound [Fe(abpt)2(tcpd)] (1) (tcpd^2 = (C[C(CN)2|3)^2 , abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole) which has been characterised as the first SCO molecular chain involving a cyanocarbanion as bridging ligand. Gomez Garcia, Carlos Jose, Carlos.Gomez@uv.es

Cyanocarbanion ligandsChemistryStereochemistryUNESCO::QUÍMICAPolimeryc approachMetals and AlloysBridging ligandBridging ligandGeneral ChemistryState (functional analysis)UNESCO::QUÍMICA::Química macromolecular:QUÍMICA [UNESCO]CatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsChain (algebraic topology)Polimeryc approach ; Cyanocarbanion ligands ; Photoinduction ; Bridging ligandSpin crossoverPhotoinductionMaterials ChemistryCeramics and Composites:QUÍMICA::Química macromolecular [UNESCO]
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Cyanocarbanion-based spin-crossover materials: photocrystallographic and photomagnetic studies of a new iron(II) neutral chain

2010

International audience; A new iron(II) chain of formula [Fe(abpt)(2)(tcpd)] [1; (tcpd)(2-) = [C(10)N(6)](2-) = (C[C(CN)(2)](3))(2-) = 2-dicyanomethylene-1,1,3,3-tetracyanopropanediide anion, abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole] has been synthesized and characterized by IR spectroscopy, detailed variable-temperature single-crystal X-ray diffraction, magnetic and photomagnetic measurements. The crystal structure determination of 1 reveals a one-dimensional structural architecture in which the (tcpd)(2-) cyanocarbanion acts as a μ(2)-bridging ligand and the two abpt molecules act as chelating ligands. Detailed X-ray diffraction studies as a function of the temperature (293-10 K…

Coordination sphere010405 organic chemistryChemistryLigandRelaxation (NMR)Analytical chemistryInfrared spectroscopy[CHIM.MATE]Chemical Sciences/Material chemistryCrystal structure010402 general chemistry01 natural sciencesLIESST0104 chemical sciencesInorganic ChemistryCrystallographySpin crossoverMoleculePhysical and Theoretical Chemistry
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Guidelines to design new spin crossover materials

2010

International audience; This review focuses on new families of spin crossover (SCO) complexes based on polynitrile anions as new anionic ligands or on polyazamacrocycles as neutral macrocyclic ligands. We have shown that the structural and electronic characteristics (original coordination modes and high electronic delocalization) of the polynitrile anions can be tuned by slight chemical modifications such as substitution of functional groups or variation of the negative charge to design new discrete or polymeric SCO systems.In our ongoing work on the design of new molecular systems based on new ligands that can be fine-tuned via chemical modifications, another promising way which has been r…

Ligand field theoryDenticityStereochemistry[CHIM.INOR]Chemical Sciences/Inorganic chemistryMolecular systemsIron(II) complexes010402 general chemistry01 natural sciencesInorganic ChemistryMetalMacrocyclic ligandsDelocalized electronSpin crossoverNegative chargeMagnetic propertiesMaterials Chemistry[CHIM]Chemical Sciences[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical Chemistry010405 organic chemistryChemistrySpin crossover0104 chemical sciencesCoordination polymersPolynitrileCrystallographyvisual_artvisual_art.visual_art_mediumCoordination Chemistry Reviews
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