dc.creator Korter, Timothy M. en_US dc.creator Pratt, D. W. en_US dc.creator Küpper, Jochen en_US dc.creator Plusquellic, D. F. en_US dc.date.accessioned 2006-06-15T19:04:52Z dc.date.available 2006-06-15T19:04:52Z dc.date.issued 1998 en_US dc.identifier 1998-RH-05 en_US dc.identifier.uri http://hdl.handle.net/1811/18950 dc.description $^{a}$ Work supported by NSF. en_US dc.description Author Institution: University of Pittsburgh, Pittsburgh; Heinrich-Heine-Universit\""{a}t, Institut f\""{u}r Physikalishe Chemie und Elektrochemie 1, Düsseldorf; Optical Technology Division, National Institute of Standards and Technology, Gaithersburg en_US dc.description.abstract The rotationally resolved fluorescence excitation spectrum of the $S_{1} \leftarrow S_{0}$ origin band of the Ar-indole van der Waals complex has been observed. This transition is an abc-hybrid, with a hybrid-band ratio of approximately 15:50:35. A careful analysis of the relative intensities of the different components shows that a three-dimensional reorientation of the principal axes occurs upon electronic excitation. We use the information obtained from this analysis to determine the possible orientations of the electronic transition moment in the bare molecule. We also determine the vibrationally averaged structures of the complex in the zero point vibrational levels of both electronic states. The argon atom is found to be attached to the indole at a distance of 3.4 {\AA} above the plane of the molecule. This distance decreases slightly (0.03 {\AA} on $S_{1} \leftarrow S_{0}$ excitation. en_US dc.format.extent 124462 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE ROTATIONALLY RESOLVED ELECTRONIC SPECTRUM OF THE AR-INDOLE VAN DER WAALS COMPLEX: THREE-DIMENSIONAL $"AXIS-TILTING"^{a}$ en_US dc.type article en_US
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