Frankfurt 2006 – wissenschaftliches Programm

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MO: Molekülphysik

MO 15: Molecular Clusters II

MO 15.8: Vortrag

Montag, 13. März 2006, 18:15–18:30, H10

Electronic excitation in the benzonitrile dimer: The intermolecular structure of the benzonitrile dimer in the S₀ and S₁ state determined by rotationally resolved electronic spectroscopy. — •Marcel Böhm¹, Michael Schmitt¹, Christian Ratzer¹, Daniel Krügler¹, Karl Kleinermanns¹, and Leo Meerts² — ¹Institut für Physikalische Chemie, Universitätsstr. 26.43.O2, D-40225 Düsseldorf, Germany — ²Molecular- and Biophysics Group, Institute for Molecules and Materials, Radboud University Nijmegen, P.O. Box 9010, NL-6500 GL Nijmegen, The Netherlands

The benzonitrile dimer is an interesting example for a homo dimer. The rotationally resolved UV spectra of the electronic origin of the benzonitrile dimer has been measured. The benzonitrile dimer was found to be of C_2h symmetry in the S₀ and S₁ state. From the inertial parameters, the N..H-distance was found to be 236 pm in the electronic ground state and 232 pm in the electronic excited state.