Line broadening of carbon dioxide confined in nanoporous aerogel

For the first time the absorption spectrum of 2 0 0 12 – 0 0 0 01 band of carbon dioxide, confined in nanoporous silica aerogel with the density of 0.009 g/cm3,was measured using a Bruker IFS 125 HR FTIR at room temperature and a spectral resolution of 0.008 cm-1. The obtained dependence of spectral line half-width values on rotational quantum numbers was studied and compared with data available in the literature.

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