Abstract
Absolute intensities of the vibration-rotation lines of the CO 2 401 II←000 band 7734 cm -1 are measured under high-resolution, low-pressure conditions by use of a White-type 25-m base-path, absorption cell together with a 5-m Czerny-Turner spectrometer. The total band intensity S B , the purely vibrational transition moment ▪, and the vibration-rotation interaction constant ζ are calculated from the intensity measurements. The values obtained for these parameters are S B (401 II) = (7.06±0.07) × 10 -5 cm -2 atm -1 293°K, ▪ = (3.08±0.03)×10 -5 debye, and ζ = (2.5±0.5)×10 -4. The intensity of the associated “hot band” 411 II←010 is also determined and found to be S B (411 II←010) = (0.53±0.02)×10 -5 cm -2 atm -1 293°K.
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