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A mononuclear nine-coordinated Dy(iii) complex exhibiting field-induced single-ion magnetism behaviour.

ABSTRACT: A new mononuclear Dy(iii) complex, with the formula [Dy(Hcpt)₃]·2H₂O (1), has been successfully prepared via self-assembly between Dy(iii) ions and 2-cyano-N'-(1-(pyridin-2-yl)amido)acetyl (Hcpt) ligand. X-ray diffraction study shows that the Dy(iii) ion is nine-coordinated by three Hcpt ligands with a tridentate chelating mode, leading to an approximately monocapped square-antiprismatic (C _4v) geometry. Magnetic data analysis demonstrates that 1 performs field-induced slow magnetic relaxation with a relaxation barrier of 97.90 K, due to the quantum tunneling effect suppressed upon a static dc field of 2000 Oe. To deeply understand the magnetic behaviors, the relaxation mechanisms and magneto-structure relationship are rationally discussed using ab initio calculations as well.

SUBMITTER: Hu B

PROVIDER: S-EPMC9089352 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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A mononuclear nine-coordinated Dy(iii) complex exhibiting field-induced single-ion magnetism behaviour.

Hu Biao B Xi Jing J Cen Peipei P Guo Yan Y Ding Yi Y Qin Yuanyuan Y Zhang Yi-Quan YQ Liu Xiangyu X

RSC advances 20220510 22

A new mononuclear Dy(iii) complex, with the formula [Dy(Hcpt)3]·2H2O (1), has been successfully prepared via self-assembly between Dy(iii) ions and 2-cyano-N'-(1-(pyridin-2-yl)amido)acetyl (Hcpt) ligand. X-ray diffraction study shows that the Dy(iii) ion is nine-coordinated by three Hcpt ligands with a tridentate chelating mode, leading to an approximately monocapped square-antiprismatic (C 4v) geometry. Magnetic data analysis demonstrates th ...[more]

PMID: 35558827

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