Absolute band intensities in the ν19/ ν23 (530 cm −1) and ν7 (777 cm −1) bands of acetone ((CH 3) 2CO) from 232 to 295 K

Abstract

Absolute band intensities of acetone ((CH 3) 2CO) in the ν 19/ ν 23 and ν 7 band systems near 530 and 777 cm −1, respectively, were measured at temperatures of 232, 262 and 295 K, using a Fourier transform infrared (FTIR) spectrometer. No evident temperature dependence for the band intensities was observed. The dipole moments and the fundamental band intensities were derived in the harmonic oscillator approximation. The results are useful for the spectroscopic retrieval of acetone concentrations in the upper atmosphere.