Gas phase spectroscopy of HNO3 in the region 2000-8500 cm(-1) |
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Authors: | Feierabend K J Havey D K Vaida V |
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Affiliation: | Department of Chemistry and Biochemistry, CIRES, University of Colorado, Campus Box 215, Boulder, CO 80309, USA. |
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Abstract: | Spectra of gas phase HNO3 were collected in the region 2000-8500 cm(-1) using Fourier-transform infrared spectroscopy. This region is dominated by the nu1 O-H stretching mode but also contains many previously unreported combination bands and overtones. This work marks the first observation of Fermi resonance the 2nu1 O-H stretching overtone. Previously unobserved bands were assigned and integrated intensities were obtained. For bands already reported in the literature, comparisons of relative intensities are presented when possible. This work gives a brief discussion on the trends in overtone intensities and on mode mixing in HNO3 in relation to previous experimental and theoretical studies. |
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