Infrared spectra of amorphous and crystalline urea ices
Vicente Timón, Belén Maté, Vı́ctor J. Herrero, Isabel Tanarro
Abstract
O ice mixtures, has been performed. The corresponding infrared spectra were simulated with density functional theory. The main spectral features observed in the various solid samples are interpreted with the help of the theoretical results. Infrared band strengths are also provided for amorphous and crystalline urea. The infrared spectroscopic information given in this work is expected to be useful for the detection and quantification of urea in astrophysical ices.
Topics & Concepts
Amorphous solidInfraredInfrared spectroscopyUreaSpectral lineMaterials scienceChemistryChemical physicsCrystallographyOrganic chemistryPhysicsOpticsAstronomyMethane Hydrates and Related PhenomenaAstrophysics and Star Formation StudiesInorganic Fluorides and Related Compounds