0000000001070488

AUTHOR

Alexander Schnegg

showing 2 related works from this author

.Single-Ion Magnetic Behaviour in an Iron(III) Porphyrin Complex: A Dichotomy Between High Spin and 5/2-3/2 Spin Admixture

2020

International audience; A mononuclear iron(III) porphyrin compound exhibiting unexpectedly slow magnetic relaxation, which is a characteristic of single-ion magnet behaviour, is reported. This behaviour originates from the close proximity (approximate to 550 cm(-1)) of the intermediate-spinS=3/2 excited states to the high-spinS=5/2 ground state. More quantitatively, although the ground state is mostlyS=5/2, a spin-admixture model evidences a sizable contribution (approximate to 15 %) ofS=3/2 to the ground state, which as a consequence experiences large and positive axial anisotropy (D=+19.2 cm(-1)). Frequency-domain EPR spectroscopy allowed them(S)= |+/- 1/2⟩->|+/- 3/2&Rig…

porphyrinoids010402 general chemistry[MATH.MATH-FA]Mathematics [math]/Functional Analysis [math.FA]01 natural sciencesMolecular physicsCatalysislaw.inventionMagnetizationchemistry.chemical_compoundiron[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]lawMössbauer spectroscopy[CHIM.COOR]Chemical Sciences/Coordination chemistryAnisotropyElectron paramagnetic resonanceSpin (physics)010405 organic chemistryChemistryOrganic ChemistryGeneral ChemistryPorphyrin0104 chemical sciences[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryExcited statesingle-ion magnetsdensity functional calculationsmagnetic propertiesGround state
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CCDC 1872265: Experimental Crystal Structure Determination

2020

Related Article: Marta Viciano-Chumillas, Geneviève Blondin, Martin Clémancey, Jurek Krzystek, Mykhaylo Ozerov, Donatella Armentano, Alexander Schnegg, Thomas Lohmiller, Joshua Telser, Francesc Lloret, Joan Cano|2020|Chem.-Eur.J.|26|14242|doi:10.1002/chem.202003052

Space GroupCrystallographydiaqua-(5101520-tetraphenylporphinato)-iron(iii) perchlorateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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