Hannover 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 16: Molecular Clusters
MO 16.5: Vortrag
Donnerstag, 3. März 2016, 12:30–12:45, f142
X-ray Magnetic Circular Dichroism of Heteronucelar Complexes in Isolation — •Joachim Hewer1, Matthias Tombers1, Johannes Lang1, Gereon Niedner-Schatteburg1, and Tobias Lau2 — 1Fachbereich Chemie und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Germany — 2Helmholtz-Zentrum Berlin Materialien und Energie, BESSY II, Berlin, Germany
We applied synchrotron based X-ray magnetic Circular dichroism (XMCD) spectrosopy to ligand stabilized [Mn2LnLx]+ complexes
(Ln = Nd, Eu, Gd, Dy, Lu; L = organic ligands) when isolated as individual ions under cryo conditions. Such investigations allow for a magnetic characterization of these complexes void of any surface or packing effects. The element selectivity of the XMCD technique allows to determine the contribution of the individual metals to the total magnetic moment of the molecules. Furthermore, sum rule analysis of the recorded XMCD spectra allows to decompose the total magnetic moment into its spin and orbital contributions. The variation of the incorporated lanthanoid ions is at the center of interest and interpretation.