Structure and properties of new mixed-valent [Mn(III)2Mn(IV)3Ln(III)5O5] complexes (Ln(III) = Tm(III), Lu(III), and Yb(III)) |
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Authors: | Hallier Kirstin Hołyńska Małgorzata Rouzières Mathieu Clérac Rodolphe Dehnen Stefanie |
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Affiliation: | Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universit?t Marburg, Hans-Meerwein-Stra?e, D-35032 Marburg, Germany. |
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Abstract: | By using 2'-hydroxyacetophenoxime, a new family of complexes with an [Mn(III)(2)Mn(IV)(3)Ln(5)O(5)] core was obtained with Ln = Tm (1), Lu (2), and Yb (3). Heterometallic Mn/Tm and Mn/Lu combinations have had no precedence so far. Studies of the magnetic properties indicate the presence of intracomplex antiferromagnetic interactions in 1 and 3, as well as a dominating ferromagnetic interaction between Mn(III) and Mn(IV) spins in 2, leading to an S(T) = 5/2 ground state. |
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