Abstract
Absorption spectra of carbon oxide, confined in nanoporous silica aerogel, have been measured within 4100–4400cm−1 region at room temperature and at several pressures using Bruker IFS-125 HR Fourier spectrometer. Dependence of the half-width (HWHM) values on rotational quantum numbers is studied and compared with the data available in literature. It is found that variations in the half-width values for the confined CO at small quantum numbers are larger than at moderate ones. The influence of confinement tightness on rotational dependence is discussed.
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