Angular-resolved single-crystal magnetometry is a key tool to characterise lanthanide-based materials with low symmetry, for which conjectures based on idealised geometries can be totally misleading. Unfortunately the technique is strictly successful only for triclinic structures, thus reducing significantly its application. By collecting out-of-equilibrium magnetisation data the technique was extended to the orthorhombic organometallic Cp*ErCOT single-molecule magnet (SMM), thus allowing for the first time the reconstruction of the molecular anisotropy tensor notwithstanding the two molecular orientations in the crystal lattice. The results, flanked by state-of-the-art ab initio calculations, confirmed the expected orientation of the molecular easy axis of magnetisation and thus validated the synthetic strategy based on organometallic complexes of a single lanthanide ion.

Angular-Resolved Magnetometry Beyond Triclinic Crystals: Out-of-Equilibrium Studies of Cp*ErCOT Single-Molecule Magnet / Marie-Emmanuelle Boulon;Giuseppe Cucinotta;Shan-Shan Liu;Shang-Da Jiang;Liviu Ungur;Liviu F. Chibotaru;Song Gao;Roberta Sessoli. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - STAMPA. - 19:(2013), pp. 13726-13731. [10.1002/chem.201302600]

Angular-Resolved Magnetometry Beyond Triclinic Crystals: Out-of-Equilibrium Studies of Cp*ErCOT Single-Molecule Magnet

CUCINOTTA, GIUSEPPE;SESSOLI, ROBERTA
2013

Abstract

Angular-resolved single-crystal magnetometry is a key tool to characterise lanthanide-based materials with low symmetry, for which conjectures based on idealised geometries can be totally misleading. Unfortunately the technique is strictly successful only for triclinic structures, thus reducing significantly its application. By collecting out-of-equilibrium magnetisation data the technique was extended to the orthorhombic organometallic Cp*ErCOT single-molecule magnet (SMM), thus allowing for the first time the reconstruction of the molecular anisotropy tensor notwithstanding the two molecular orientations in the crystal lattice. The results, flanked by state-of-the-art ab initio calculations, confirmed the expected orientation of the molecular easy axis of magnetisation and thus validated the synthetic strategy based on organometallic complexes of a single lanthanide ion.
19
13726
13731
Marie-Emmanuelle Boulon;Giuseppe Cucinotta;Shan-Shan Liu;Shang-Da Jiang;Liviu Ungur;Liviu F. Chibotaru;Song Gao;Roberta Sessoli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/826272
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