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MO: Fachverband Molekülphysik

MO 13: Photochemistry

MO 13.3: Vortrag

Montag, 19. März 2007, 17:00–17:15, 6B

Photodissociation of Uracil — •Michael Schneider¹, Christof Schon¹, Luis Rubio-Lago², Bastian Noller¹, Theofanis Kitsopoulos², and Ingo Fischer¹ — ¹Institut für Physikalische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany — ²Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FO.R.T.H.), P.O. Box 1527, 71110 Heraklion, Crete, Greece

We examined the photodissociation of uracil after UV excitation by H-atom photofragment Doppler spectroscopy and slice imaging. The kinetic energy distribution shows a behaviour typical for statistical dissociation. No anisotropy is observed in the angular distribution of the images. Thus the photodissociation is purely statistical and there is no evidence for the contribution of repulsive πσ^*-states as is the case in adenine.