Infrared spectrum and theoretical study of the dinitrogen pentoxide molecule (N2O5) in solid argon

Abstract

Fourier Transform Infrared (FTIR) spectra of the covalent dinitrogen pentoxide molecule isolated in a solid argon matrix at 10 K are reported. The measured frequencies in the 200–4000 cm−1 region are in close agreement with gas phase values previously reported. An accurate and sophisticated ab initio study showed that the stable equilibrium structure, C2 symmetry, was in agreement with the structure previously determined by electron diffraction data.