The absorption spectrum of mixtures of H2O, HDO and D2O has been recorded in the region 9161.5 to 9392.5 cm-1 with an absorption sensitivity of 10-7 cm-1 and a line-center determination accuracy of 0.08 cm-1. An attempt to identify the absorption bands of the spectrum obtained experimentally was undertaken. The justification for attributing the observed lines to the HDO bands (3ν1 + ν2), (ν1 + 2ν2 + ν3) and D2O bands (ν2 + 3ν3), (ν1 + ν2 + 2ν3) is given. In this study the bands centers have been found and the molecular rotational and centrifugal constants have been determined as well.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Atomic and Molecular Physics, and Optics