Fine Structure of the 2.7 Micron Carbon Dioxide Rotation-Vibration Band

Abstract

The infrared spectrum of CO2 in the region of 2.7μ has been remeasured. Five rotation-vibration bands have been identified and analyzed in detail. One of these is due to C13O2. The rotational constants obtained were B000=0.3904 cm−1 and D000=0.25×10−6 cm−1.In two of the bands l-type doubling occurs, and the values of the splitting constants q were determined.