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Magnetism gets a new twist: The crystal structure and magnetic properties of a chiral 3D ferrimagnet with Tc of 35 K, [{CrIII(CN)6}{MnII(d- or L-NH2ala)}3]⋅3 H2O (NH2ala=aminoalanine ion) are described. The complex has an extended, chiral, triple-strand helical arrangement of MnII ions, formed by the coordination of the organic ligands (see picture; purple Mn, gray C, blue N, red O). The triple helixes are linked to each other by the {CrIII(CN)6} units.
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Imai et al. (2004) studied this question.
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