Near-Infrared Spectra of High-Density Crystalline H<sub>2</sub>O Ices II, IV, V, VI, IX, and XII
Christina M. Tonauer, Eva‐Maria Köck, Tobias M. Gasser, Violeta Fuentes-Landete, Raphael Henn, Sophia Mayr, Christian G. Kirchler, Christian W. Huck, Thomas Loerting
Abstract
. By contrast to earlier work, we do not use mulling agents or transmission of thin films but use diffuse reflectance on powdered samples in liquid nitrogen. The first overtone of the OH-stretching mode is identified as the marker band most suitable to distinguish between these ices. There is a clear blue shift of this band that increases with increasing topological density in addition to a significant narrowing of the band.
Topics & Concepts
Spectral lineInfrared spectroscopyOvertoneInfraredChemistryCrystallographyBand gapHydrogen bondNitrogenMaterials scienceAnalytical Chemistry (journal)PhysicsMoleculeOpticsOptoelectronicsOrganic chemistryAstronomyMethane Hydrates and Related PhenomenaHigh-pressure geophysics and materialsGlass properties and applications