The influence of molecular vicinity (expressed in terms of dielectric constant) on the infrared spectra of embedded species in ices and solid matrices
S. Pilling, Víctor S. A. Bonfim
Abstract
in unity of cm per molecule. In addition, an associative exponential function was adjusted to the studied dataset to characterize the evolution of frequency-shift and intensity-shift and band strength ratio as function of the dielectric constant. Since astrophysical ice mantles over cold dust grains can vastly vary in composition in space (having different dielectric constants) they are a challenge to be well characterized. Therefore, this work can help the astrochemistry community to better understand astrophysical ices and its observations in the infrared.
Topics & Concepts
DielectricConstant (computer programming)InfraredInfrared spectroscopySpectral lineMaterials scienceAnalytical Chemistry (journal)ChemistryOptoelectronicsPhysicsOrganic chemistryOpticsComputer scienceQuantum mechanicsProgramming languageSolid-state spectroscopy and crystallographyMaterial Dynamics and PropertiesAdvanced Chemical Physics Studies