title: Structure and properties of new mixed-valent [Mn(III)2Mn(IV)3Ln(III)5O5] complexes (Ln(III) = Tm(III), Lu(III), and Yb(III)).
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.
authors.affiliation: Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Hans-Meerwein-Straße, D-35032 Marburg, Germany.
authors.forename: Kirstin
authors.initials: K
authors.lastname: Hallier
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Hołyńska
authors.forename: Mathieu
authors.initials: M
authors.lastname: Rouzières
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Clérac
authors.forename: Stefanie
authors.initials: S
authors.lastname: Dehnen