Optical constant, dielectric constant and molar polarizability spectra of liquid hexane between 4000 and 400 cm− 1 at 25 °C

This study forms part of a larger study on absolute infrared absorption intensities of organic liquids. Previously, the optical constants of a series of benzene derivatives (benzene, benzene-d6, benzene-d1, chlorobenzene, bromobenzene, bromobenzene-d5, toluene, toluene-d8, hexafluorobenzene, ethylbenzene, fluorobenzene) were reported. In the current study, the infrared absorption spectra of liquid hexane were recorded at 25 °C from 4000 to 400 cm−1 using transmission cells of 10 to 4251 μm. The optical constants (complex refractive indices), complex dielectric constants, and complex molar polarizability spectrum of liquid hexane were determined.