The Rotational Structure of the Ultraviolet Bands of NO2
- 1 October 1940
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 8 (10) , 775-784
- https://doi.org/10.1063/1.1750578
Abstract
The rotational structure of the 2491A band in the ultraviolet absorption spectrum of NO2 is not completely resolved, but the spectroscopic constants have been determined from the spacing of the subbands (groups of transitions with the same K), their intensity, the temperature coefficients of absorption and finally from the comparison of synthetic spectra constructed from arbitrary constants with the observed spectra. The O–N–O angle in the lower state is 154° and the N–O distance is 1.28A. For the excited state the angle remains essentially the same, the internuclear distance increasing to 1.41A.Keywords
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