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    Oblate versus Prolate Electron Density of Lanthanide Ions: A Design Criterion for Engineering Toroidal Moments? A Case Study on {Ln <sup>III</sup><inf>6</inf> } (Ln=Tb, Dy, Ho and Er) Wheels

    Langley, SK, Vignesh, KR, Moubaraki, B, Rajaraman, G and Murray, KS (2019) Oblate versus Prolate Electron Density of Lanthanide Ions: A Design Criterion for Engineering Toroidal Moments? A Case Study on {Ln <sup>III</sup><inf>6</inf> } (Ln=Tb, Dy, Ho and Er) Wheels. Chemistry - A European Journal, 25 (16). pp. 4156-4165. ISSN 0947-6539

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    Abstract

    © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim We report four new complexes based on a {Ln III6 } wheel structure, three of which possess a net toroidal magnetic moment. The four examples consist of {Tb III6 } and {Ho III6 } wheels, which are rare examples of non Dy III based complexes possessing a toroidal magnetic ground state, and a {Dy III6 } complex which improves its toroidal structure upon lowering the crystallographic symmetry from trigonal (R (Formula presented.)) to triclinic (P (Formula presented.)). Notably the toroidal moment is lost for the trigonal {Er III6 } analogue. This suggests the possibility of utilizing the popular concept of oblate and prolate electron density of the ground state M J levels of lanthanide ions to engineer toroidal moments.

    Item Type: Article
    Peer-reviewed: Yes
    Date Deposited: 08 Jun 2020 14:26
    Publisher: Wiley
    Additional Information: This is an Author Accepted Manuscript of a paper accepted for publication in Chemistry - A European Journal, published by and copyright Wiley.
    Divisions: Faculties > Science and Engineering
    Research Centres > Advanced Materials and Surface Engineering
    Subject terms: dipoles, lanthanides, magnetism, symmetry, toroics, Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry, SINGLE-MOLECULE MAGNETISM, DYSPROSIUM TRIANGLES, GROUND-STATE, LIGAND-FIELD, COMPLEXES, MAGNETIZATION, BISTABILITY, SYSTEMS, FAMILY, General Chemistry, 03 Chemical Sciences
    URI: https://e-space.mmu.ac.uk/id/eprint/625954
    DOI: https://doi.org/10.1002/chem.201805765
    ISSN 0947-6539
    e-ISSN 1521-3765

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