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"Fluorescence spectra of trans- and cis-azobenzene - emission from the Franck-Condon state" H. Satzger, S. Spörlein, C. Root, J . Wachtveitl, W. Zinth, P. GilchChem. Phys. Lett 372 (2003) 216-223 Abstract: The photodynamics of the two isomers of azobenzene in DMSO after np excitation are monitored via transient absorption and steady state emission spectroscopy. The excited state decay of the cis-form is close to single-exponential with a time constant of 0.1 ps. The trans-isomer decays in a biphasic fashion with characteristic times of 0.34 and 3.0 ps. This biphasic behaviour has no impact on its uorescence intensity. It is concluded that the uorescence probes the dynamics in the vicinity of the Franck Condon region. BMO authors (in alphabetic order): Peter Gilch Christopher Root Helmut Satzger Sebastian Spörlein Josef Wachtveitl Wolfgang Zinth Assoziierte Projekte: Photoswitchable model peptides and their conformational dynamics Femtosekunden Untersuchung ultraschneller molekularer Schalter Peptide and protein folding |