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Dresden 2006 – scientific programme

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MA: Magnetismus

MA 37: Molecular Magnetism

MA 37.9: Talk

Friday, March 31, 2006, 12:45–13:00, HSZ 403

Magnetic and optical properties of oxamato bridged Cu(II) complexes — •Björn Bräuer1, Tobias Rüffer2, Dietrich R. T. Zahn1, and Georgeta Salvan11Technische Universität Chemnitz, Institut für Physik, Reichenhainer Str. 70, D-09107 Chemnitz — 2Technische Universität Chemnitz, Institut für Chemie, Straße der Nationen 62, D-09107 Chemnitz

Coordination complexes allow the step-wise incorporation of an extended number of transition metal ions. Bis-oxamato type transition metal complexes are prominent representatives of such systems and are used for the synthesis of trimetallic complexes. The magnetic coupling constant of such molecules and their spin density were determined using Superconducting Quantum Interference Device (SQUID) and Electron Paramagnetic Resonance measurements on powder. These molecules were also deposited as thin films on silicon using spin-coating. Variable Angle Spectroscopic Ellipsometry (VASE), Raman and IR spectroscopy studies showed that the molecular structure is preserved during the deposition process and that the films exhibit a preferential molecular orientation.

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