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Coupling Dy3 Triangles to Maximize the Toroidal Moment

Authors

  • Shuang-Yan Lin,

    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
    2. University of Chinese Academy of Sciences, Beijing 100039 (P. R. China)
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  • Dr. Wolfgang Wernsdorfer,

    1. Institut Néel, CNRS & Université J. Fourier, BP 166, 25 Avenue des Martyrs, 38042 Grenoble (France)
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  • Dr. Liviu Ungur,

    1. Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven (Belgium)
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  • Prof. Annie K. Powell,

    1. Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131 Karlsruhe (Germany)
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  • Yun-Nan Guo,

    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
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  • Prof. Dr. Jinkui Tang,

    Corresponding author
    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
    • State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
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  • Dr. Lang Zhao,

    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
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  • Prof. Liviu F. Chibotaru,

    Corresponding author
    1. Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven (Belgium)
    • Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven (Belgium)
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  • Prof. Hong-Jie Zhang

    Corresponding author
    1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
    • State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China)
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  • This work was supported by the National Natural Science Foundation of China (91022009 and 20921002) and the FWO-Vlaanderen (Flemish Science Foundation; L.U.).

Abstract

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A hexanuclear dysprosium(III) compound constructed by two Dy3 triangles in an edge-to-edge arrangement perfectly retains a nonmagnetic ground state and single-molecular-magnet behavior. Such an arrangement and the strong couplings over a μ4-O2− ion stabilize a similar arrangement of toroidal moments in the ground state, thus maximizing the toroidal moment of the complex. (Picture: Dy purple, C gray, N blue, O red.)

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