FTIR Spectrum of the ν2 Band of Deuterated Nitric-Acid (DNO3)

Abstract

The infrared absorption spectrum of the ν2 band of deuterated nitric acid (DNO3) has been measured on a Bomem DA3.002 Fourier transform spectrometer in the wavenumber region 1640-1740 cm-1 with a resolution of 0.004 cm-1; 2036 transitions have been assigned in this hybrid type A and B band centered at 1688.3629 ± 0.0002 cm-1. The assigned transitions have been fitted to give nine rovibrational constants for the v2 = 1 state with a standard deviation of 0.00064 cm-1. The ratio of the transition moments, |μb/μa|, has been found to be 1.98 ± 0.10 for the band. © 1994 Academic Press. All rights reserved.