An IR investigation of solid amorphous ethanol - Spectra, properties, and phase changes.

Mid- and far-infrared spectra of condensed ethanol (CH3CH2OH) at 10-160K are presented, with a special focus on amorphous ethanol, the form of greatest astrochemical interest, and with special attention given to changes at 155-160K. Infrared spectra of amorphous and crystalline forms are shown. The refractive index at 670nm of amorphous ethanol at 16K is reported, along with three IR band strengths and a density. A comparison is made to recent work on the isoelectronic compound ethanethiol (CH3CH2SH), and several astrochemical applications are suggested for future study. Published by Elsevier B.V.