BANDS OF $HNO_{2}$

Abstract

Fourier Transform infrared spectra of $HNO_{2}$ have been recorded with a Bruker IFS 120HR, at an instrumental resolution better than $0.003 cm^{-1}$. The pressure conditions of the various parent gases ($NO_{2}, NO$ and $H_{2}O$) are optimized during the experiments. The analysis of the $\nu_{1}$ band in $trans-HNO_{2}$ (1) will be reported. A very specific interaction pattern perturbing the $\nu_{1}=1$ level will be discussed. Preliminary results of the analysis of other bands in several wavelength regions will be also reported.