Hannover 2010 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 8: Poster: Electronic Spectroscopy

MO 8.10: Poster

Dienstag, 9. März 2010, 16:00–18:30, Lichthof

Spectroscopic analyses of the electronically excited states of metal/ligand complexes containing six coinage metal atoms — •Yvonne Schmitt¹, Thomas Jozak², Werner Thiel², and Markus Gerhards¹ — ¹TU Kaiserslautern, Physikalische und Theoretische Chemie, Erwin-Schrödingerstr. 52, 67663 Kaiserslautern — ²TU Kaiserslautern, Anorganische Chemie, Erwin-Schrödingerstr. 54, 67663 Kaiserslautern

For entantioselective catalysis chiral ligands are of great interest. Here we use a ligand that contains a pyrazole and a binaphthyl moiety. This ligand is able to form a complex that contains six coinage atoms (Cu, Ag or Au). By applying absorption and emission spectroscopy in solution, energy and also lifetimes of electronically excited states of the complexes and the pure ligand are investigated and discussed. The investigations are performed in different polar (acetonitrile) and nonpolar (toluene) aprotic solvents indicating strong dependencies of the fluorescence spectra.