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INVESTIGATION OF INTERNAL MOTION IN THE SYM CONFORMER OF 9-FLUORENEMETHANOL: A GAS PHASE HIGH RESOLUTION ELECTRONIC SPECTROSCOPY STUDY

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/31165

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Title: INVESTIGATION OF INTERNAL MOTION IN THE SYM CONFORMER OF 9-FLUORENEMETHANOL: A GAS PHASE HIGH RESOLUTION ELECTRONIC SPECTROSCOPY STUDY
Creators: Mitchell, Diane M.; Morgan, Philip J.; Pratt, D. W.; Fitzpatrick, James A. J.
Issue Date: 2006
Abstract: Last year, results were presented on the high resolution fluorescence excitation spectra of the S$_1\leftarrow$ S$_0$ origin transitions of two conformers of 9-fluorenemethanol (9FM). Theoretical calculations predicted two conformers, designated as symmetric and unsymmetric. Each of the two origin bands were uniquely assigned to a conformer. A splitting was observed in the origin band of the symmetric conformer, and possible explanations were presented for this splitting. One explanation involved a symmetric motion of the -OH group above the plane of the ring system, made possible by a concerted motion involving rotation about the C$_9$-C$_\alpha$ bond and rotation of oxygen about the C$_\alpha$-O bond. Spectra have now been taken of deuterated 9FM, with the -OH group being replaced by -OD. Analysis of these results will provide further information about the observed internal motion. The sym 9FM-D origin is found to be blue-shifted relative to 9FM and displays a reduced splitting.
URI: http://hdl.handle.net/1811/31165
Other Identifiers: 2006-TI-07
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