Regensburg 2013 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 16: Poster I
MA 16.57: Poster
Dienstag, 12. März 2013, 10:30–13:30, Poster D
HF-ESR studies of the compounds {[Cu(bpy)3][Cu2(C2O4)3]·H2O}n and {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n — •Dijana Žilić1,2, Boris Rakvin2, Marijana Jurić2, Pavica Planinić2, Damir Pajić3, Krešo Zadro3, Yulia Krupskaya1, Vladislav Kataev1, and Bernd Büchner1 — 1Leibniz Institute for Solid State and Materials Research IFW Dresden, Dresden, Germany — 2Rudjer Bošković Institute, Zagreb, Croatia — 3Faculty of Science, University of Zagreb, Zagreb, Croatia
The homometallic {[Cu(bpy)3][Cu2(C2O4)3]·H2O}n (1) and the heterometallic {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n (2) compounds, where bpy = 2,2’-bipyridine, consist of a three-dimensional (3D), polimeric anionic network [M2(C2O4)3]n2n− (where M = Cu2+ or Mn2+) with cations [Cu(bpy)3]2+ occupying the vacancies of the network.
Frequency- and temperature-dependent high field electron spin resonance (HF-ESR) measurements on a polycrystalline sample of 1 and 2 are presented. Supported by X-band ESR on the polycrystalline of 1 and on the single crystal of 2, as well as, SQUID magnetization measurements, the magnetic properties of the compounds 1 and 2 are discussed.