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Hannover 2010 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 12: Photochemistry I

MO 12.3: Vortrag

Mittwoch, 10. März 2010, 11:15–11:30, F 142

The Triplet Spectrum of Xanthone Obtained via Time Resolved Infrared Spectroscopy — •Halina Sarah Strzalka, Andreas Deeg, Tobias Erich Schrader, Peter Gilch, and Wolfgang Zinth — Lehrstuhl für Biomolekulare Optik, LMU München

In order to extend the high sensitivity and the parallel detection of femtosecond infrared spectroscopy towards timescales of nano- and microseconds, we implemented electronic synchronization of the femtosecond system with a sub-nanosecond Nd-laser used for excitation. As a first application we present time-resolved IR-spectroscopy of Xanthone. Here the infrared spectrum of the triplet state was recorded in the nanosecond range. DFT-calculations are used for band assignment. The investigations clearly show the high potential of the presented experimental systems for the study of transient infrared spectroscopy from femtoseconds to microseconds.

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