Knowledge Bank

Spectra of a $CO2$ sample enriched with $\mathrm{<mrow\; data-mjx-texclass="ORD">18</mrow>}O$ have been measured using a 3.5 m path high temperature absorption cell and the AFGL high resolution interferometer. The spectra were taken at a resolution of $0.007cm-1$, at temperatures of 300, 500, and 800 K, and pressures of 3 and 6 torr. Ten $△v3=1$ bands have been identified previously in the experimental spectra and molecular constants for these bands have been reported.$\mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}$ Further analysis of these spectra has resulted in the identification of additional bands. Effective rotation-vibration constants for these bands will be presented.$\mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}$