[CrF(O2CtBu)2]9: Synthesis and Characterization of a Regular Homometallic Ring with an Odd Number of Metal Centers and Electrons

Robert Woolfson, Grigore Timco, Alessandro Chiesa, Inigo Vitorica-Yrezabal, Floriana Tuna, Tatiana Guidi, Eva Pavarini, Paolo Santini, Stefano Carretta, Richard Winpenny

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    Abstract

    The first regular homometallic ring containing an
    odd number of metal centers is reported. The ring was
    synthesized by means of amine-templated self-assembly.
    Extensive physical characterization studies, including magnetic
    measurements, powder inelastic neutron scattering (INS), and
    DFT calculations, show that the molecule has a near perfect
    match to the expected behavior for a frustrated system with the
    lowest energy pair of S=1/2 spin states separated by only
    0.1 meV (0.8 cm¢1).
    Original languageEnglish
    Article number8856 –8859
    JournalAngewandte Chemie - International Edition
    Volume55
    Issue number31
    Early online date13 Jun 2016
    DOIs
    Publication statusPublished - 20 Jul 2016

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