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Influencing the Symmetry of High-Nuclearity and High-Spin Manganese Oxo Clusters: Supramolecular Approaches to Manganese-Based Keplerates and Chiral Solids

Authors

  • Dr. Lei Zhang,

    1. School of Chemistry & CRANN, University of Dublin, Trinity College, Dublin 2, (Ireland)
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  • Dr. Rodolphe Clérac,

    1. CNRS, CRPP, UPR 8641, Centre de Recherche Paul Pascal, Equipe “Matériaux Moléculaires Magnétiques”, 115 avenue du Dr. Albert Schweitzer, 33600 Pessac (France)
    2. Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac (France)
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  • Pierre Heijboer,

    1. School of Chemistry & CRANN, University of Dublin, Trinity College, Dublin 2, (Ireland)
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  • Dr. Wolfgang Schmitt

    Corresponding author
    1. School of Chemistry & CRANN, University of Dublin, Trinity College, Dublin 2, (Ireland)
    • School of Chemistry & CRANN, University of Dublin, Trinity College, Dublin 2, (Ireland)
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  • We thank the Science Foundation Ireland (SFI; 06/RFP/CHE173 and 08/IN.1/I2047), IRCSET (fellowship for L.Z.), the University of Bordeaux, the ANR (NT09_469563, AC-MAGnets project), the Région Aquitaine, the GIS Advanced Materials in Aquitaine (COMET Project), and the CNRS for financial support. We thank Dr. Martin Feeney for help with the ESI-MS analyses and Prof. M. Evangelisti for his kind help regarding the MCE calculations.

Abstract

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Meet me at the symmetry gates: A supramolecular approach using chlorides as structure-directing ligands gives high-nuclearity, mixed-valent Mn coordination clusters with {MnIIMnIII12}, {MnII3MnIII10}, and {MnII3MnIII11} core structures that have supramolecular chirality. The {MnIIMnIII12} complex (see structure: Mn blue, Cl green, O red) is the first structurally characterized Mn-based Keplerate and has one of the highest symmetries reported for a high-nuclearity Mn coordination cluster.

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