ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Fourier-transform absorption spectra of NO2 at 298 K were recorded between 9000–15 000 cm−1 at Doppler-limited resolution (0.012 cm−1), in the region near the A˜ 2B2–X˜ 2A1 conical intersection. The strong rovibronic bands are rather isolated and organized into polyads which can be assigned by the number of bending quanta of the A˜ 2B2 state, corresponding to the transitions with the largest Franck–Condon factors. Around 9735 cm−1, where the origin of the A˜ 2B2–X˜ 2A1 vibronic band system is located and up to about 11 200 cm−1, hot bands dominate the spectrum. The complexity of the spectrum increases with energy due to an increasing density of A˜ 2B2 and X˜ 2A1 vibrational levels. The rotational structure is dense and irregular as already observed for higher bands. © 1998 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.477716
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