Details

Autor(en) / Beteiligte

• Ding, Xia‐Li
• Zhai, Yuan‐Qi
• Han, Tian
• Chen, Wei‐Peng
• Ding, You‐Song
• Zheng, Yan‐Zhen

Titel

A Local D4h Symmetric Dysprosium(III) Single‐Molecule Magnet with an Energy Barrier Exceeding 2000 K

Ist Teil von

• Chemistry : a European journal, 2021-02, Vol.27 (8), p.2623-2627

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Three six‐coordinate DyIII single‐molecule magnets (SMMs) [Dy(OtBu)2(L)4]+ with local D4h symmetry are obtained by optimizing the equatorial ligands. One of the compounds with L=4‐phenylpyridine shows an energy barrier (Ueff) of 2075(11) K, which is the third largest Ueff, and the first Ueff>2000 K for SMMs with axial‐type symmetry so far. Ab initio analysis indicates that the exceptional uniaxial magnetic anisotropy is deeply related to the axially compressed octahedral geometry. This work provides a new insight into the local D4h symmetry for high‐performance SMMs. Building single‐molecule magnets: A compressed octahedral dysprosium(III) single‐molecule magnet with local D4h symmetry exhibits an energy barrier over 2000 K.