Article ID Journal Published Year Pages File Type
5427996 Journal of Quantitative Spectroscopy and Radiative Transfer 2015 11 Pages PDF
Abstract

•The spectrum of H218O was studied between 15,000 and 16,000 cm−1 for the first time.•426 Levels of 11 states of H218O were determined.•72 Levels of 6 states of H217O were determined for the first time.

The spectrum of Н218О has been recorded between 15,000 and 16,000 cm−1 by a Fourier transform spectrometer with spectral resolutions of 0.03 cm−1 and 0.05 cm−1 using high luminance LED light sources and a 60-cm multipath cell with a path length of 1920 and 3480 cm. A high signal-to-noise ratio (S/N=10,000) enabled us to register more than 1500 water vapor lines with intensities 1.0×10-27 to 2.2×10−24 cm/molecule at 296 K. 426 rotational-vibrational levels of the H218O molecule were assigned to eleven vibrational states: (014), (033), (052), (113), (132), (151), (212), (231), (311), (330) and (410). 72 Rotational-vibrational levels of the H217O molecule were assigned to six vibrational states: (014), (033), (113), (212), (311) and (410). An extended set of H218O transitions in the 15,000-16,000 cm−1 range was generated using the obtained energy level list and the results of a variational intensity calculation.

Related Topics
Physical Sciences and Engineering Chemistry Spectroscopy
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