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    Tuning of Hula-Hoop Coordination Geometry in a Dy Dimer

    Peng, Yan, Mereacre, Valeriu, Anson, Christopher, Powell, Annie
    Inorganics, 2016, Vol.4(1), p.2 [Peer Reviewed Journal]
    © ProQuest LLC All rights reserved, Materials Science Database, Biological Science Database, Publicly Available Content Database, Research Library China, ProQuest Research Library, ProQuest Biological Science Collection, ProQuest Central, ProQuest Materials Science Collection, ProQuest Natural Science Collection, ProQuest Technology Collection, Research Library (Alumni edition), ProQuest SciTech Collection, Materials Science & Engineering Database, Natural Science Collection, ProQuest Central (new), ProQuest Central K-12, ProQuest Central Korea, Research Library Prep, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest Central China, ProQuest One Academic, Materials Science Collection (ProQuest)
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    Title: Tuning of Hula-Hoop Coordination Geometry in a Dy Dimer
    Author: Peng, Yan; Mereacre, Valeriu; Anson, Christopher; Powell, Annie
    Subject: Chemical Reactions ; Geometry ; Ions ; Magnetism
    Description: The reaction of DyCl3 with hydrazone Schiff base ligands and sodium acetate in the presence of triethylamine (Et3N) as base affords two dysprosium dimers: [Dy2(HL1)2(OAc)2(EtOH)(MeOH)] (1) and [Dy2(L2)2(OAc)2(H2O)2]*2MeOH (2). The DyIII ions in complexes 1 and 2 are linked by alkoxo bridges, and display "hula hoop" coordination geometries. Consequently, these two compounds show distinct magnetic properties. Complex 1 behaves as a field-induced single molecule magnet (SMM), while typical SMM behavior was observed for complex 2. In addition, comparison of the structural parameters among similar Dy2 SMMs with hula hoop-like geometry reveals the significant role played by coordination geometry and magnetic interaction in modulating the relaxation dynamics of SMMs.
    Is part of: Inorganics, 2016, Vol.4(1), p.2
    Identifier: 23046740 (E-ISSN)

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    Tuning of Hula-Hoop Coordination Geometry in a Dy Dimer

    Yan Peng, Valeriu Mereacre, Christopher E. Anson, Annie K. Powell
    Inorganics, 01 January 2016, Vol.4(1), p.2 [Peer Reviewed Journal]
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    Title: Tuning of Hula-Hoop Coordination Geometry in a Dy Dimer
    Author: Yan Peng; Valeriu Mereacre; Christopher E. Anson; Annie K. Powell
    Subject: Hydrazone Schiff Base ; Dy Dimer ; Hula-Hoop ; Single Molecule Magnets ; Chemistry
    Description: The reaction of DyCl3 with hydrazone Schiff base ligands and sodium acetate in the presence of triethylamine (Et3N) as base affords two dysprosium dimers: [Dy2(HL1)2(OAc)2(EtOH)(MeOH)] (1) and [Dy2(L2)2(OAc)2(H2O)2]·2MeOH (2). The DyIII ions in complexes 1 and 2 are linked by alkoxo bridges, and display “hula hoop” coordination geometries. Consequently, these two compounds show distinct magnetic properties. Complex 1 behaves as a field-induced single molecule magnet (SMM), while typical SMM behavior was observed for complex 2. In addition, comparison of the structural parameters among similar Dy2 SMMs with hula hoop-like geometry reveals the significant role played by coordination geometry and magnetic interaction in modulating the relaxation dynamics of SMMs.
    Is part of: Inorganics, 01 January 2016, Vol.4(1), p.2
    Identifier: 2304-6740 (E-ISSN); 10.3390/inorganics4010002 (DOI)