Absorption spectra of H2O and D2O molecules in the vacuum-ultraviolet region
- 28 March 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (6) , 993-1010
- https://doi.org/10.1088/0022-3700/11/6/012
Abstract
The absorption spectra of H2O and D2O molecules have been studied in the region from 1130 to 500 AA using a 1.3 GeV electron synchrotron as a background source and a vacuum-ultraviolet (VUV) spectrograph equipped with a 50 cm grating. Many vibrational bands associated with the 'CD' Rydberg series are observed in the 1130-980 AA region and are classified into three (CC'D) Rydberg series accompanied by vibrationally excited states. A number of bands in the 980-800 AA region are assigned to vibrational progressions of the 3a1 to nd Rydberg series, and the bands in the 800-650 AA region to the vibrational progression corresponding to the 1b2 to 4sa1 transition. A continuum lying in the 1000-800 AA region is attributed to the 1b2 to 3sa1 transition.Keywords
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