Search results for "Spin Cross-Over"

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Spin Cross-Over (SCO) Complex Based on Unsymmetrical Functionalized Triazacyclononane Ligand: Structural Characterization and Magnetic Properties

2019

International audience; The unsymmetrical ligand 1-(2-aminophenyl)-4,7-bis(pyridin-2-ylmethyl)-1,4,7-triazacyclononane (L6) has been prepared and characterized by NMR spectroscopy. The L6 ligand is based on the triazamacrocycle (tacn) ring that is functionalized by two flexible 2-pyridylmethyl and one rigid 2-aminophenyl groups. Reaction of this ligand with Fe(ClO4)2·xH2O led to the complex [Fe(L6)](ClO4)2 (1), which was characterized as the first Fe(II) complex based on the unsymmetrical N-functionalized tacn ligand. The crystal structure revealed a discrete monomeric [FeL6]2+ entity in which the unsymmetrical N-functionalized triazacyclononane molecule (L6) acts as hexadentate ligand. As …

Crystal structure010402 general chemistryRing (chemistry)01 natural scienceslcsh:Chemistrychemistry.chemical_compoundSpin crossoverPyridineMagnetic propertiesMacrocycle ligands; Iron complex; High spin and Low spin; Spin Cross-Over; Magnetic propertiesMaterials ChemistryMolecule[CHIM.COOR]Chemical Sciences/Coordination chemistryIron complex010405 organic chemistryLigand[CHIM.MATE]Chemical Sciences/Material chemistryNuclear magnetic resonance spectroscopy0104 chemical sciencesElectronic Optical and Magnetic MaterialsCrystallographyMonomerchemistrylcsh:QD1-999Chemistry (miscellaneous)Macrocycle ligandsHigh spin and Low spinSpin Cross-OverMagnetochemistry
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Interplay between spin-crossover and luminescence in a multifunctional single crystal iron( ii ) complex: towards a new generation of molecular senso…

2019

Multifunctional mononuclear iron( ) complex coordinated with six phosphorescent ligands exhibiting correlated spin-crossover transition and enhanced fluorescence.

Coordination spherePhotoluminescenceMaterials scienceSpin statesMolecular SensorsPhotoluminescentSpin transition[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistry01 natural sciencesSpin crossover[CHIM]Chemical SciencesIron complex010405 organic chemistrydigestive oral and skin physiologyGeneral Chemistry[CHIM.MATE]Chemical Sciences/Material chemistry0104 chemical sciencesChemistrySynergyChemical physicsHigh spin and Low spinSpin Cross-OverLight emissionLuminescenceSingle crystal
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