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HIGH RESOLUTION ELECTRONIC SPECTROSCOPY OF 9,10-DIHYDROPHENANTHRENE. STUDY OF THE INVERSION MOTION OF A FLOPPY MOLECULE IN THE GAS PHASE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/30865

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Title: HIGH RESOLUTION ELECTRONIC SPECTROSCOPY OF 9,10-DIHYDROPHENANTHRENE. STUDY OF THE INVERSION MOTION OF A FLOPPY MOLECULE IN THE GAS PHASE
Creators: Alvarez-Valtierra, Leonardo; Pratt, D. W.
Issue Date: 2006
Abstract: Rotationally resolved S$_1\leftarrow\,\,$S$_0$ fluorescence excitation spectra of 9,10-dihydrophenanthrene (DHPH) have been studied in a collision-free molecular beam environment. DHPH exhibits two well defined Franck-Condon progressions of vibronic bands. From the analyses of its fully resolved electronic spectra, the first progression has been assigned to the out of plane CH$_2$-CH$_2$ bridge deformation inversion motion of the molecule. The second progression, split into doublets of alternating intensities, is likely to be caused by combination of vibrational modes upon excitation. Detailed information about the assignments and inversion barriers in both electronic states will be discussed.
URI: http://hdl.handle.net/1811/30865
Other Identifiers: 2006-MF-04
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