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LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF THE BaNC FREE RADICAL IN A SUPERSONIC JET

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/21114

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Title: LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF THE BaNC FREE RADICAL IN A SUPERSONIC JET
Creators: Mikhailov, Victor A.; Wheeler, Martyn D.; Ellis, Andrew M.
Issue Date: 2003
Abstract: Laser induced fluorescence spectra of the BaNC free radical in a supersonic jet have been recorded for the first time. A strong and rather complicated excitation spectrum was observed between $18000-19500 cm^{-1}$. A partial assignment has been made but uncertainties remain. In the corresponding dispersed fluorescence spectra, long progressions in the bending mode have been identified. The low frequency of this mode, $70 cm^{-1}$ for the fundamental, demonstrates that BaNC is relatively floppy in the bending coordinate in its ground electronic state. The intensity profiles of the bending progressions suggest that BaNC undergoes a substantial change in its equilibrium bond angle on electronic excitation. This is most likely due to formation of a bent structure in the excited electronic state.
URI: http://hdl.handle.net/1811/21114
Other Identifiers: 2003-WH-11
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