Absorption cross sections of n-butane, n-pentane, cyclopentane and cyclohexane

The infrared absorption cross sections of pure n-butane, n-pentane, cyclopentane and cyclohexane have been measured in the 3.3 mu m region (and 6.8 mu m region for cyclopentane) by high resolution Fourier transform spectroscopy. The samples had temperatures of 294 K and 230 K for n-butane, 294 K and 218 K for n-pentane, 296 K and 235 K for cyclopentane, and 294 K and 222 K for cyclohexane. These spectra are important for molecular identification in extraterrestrial environments such as Saturn's moon Titan, giant planets and exoplanets. All spectra are provided as data point files. (C) 2022 Elsevier Ltd. All rights reserved.