Metastable phase equilibria in the ice II stability field. A Raman study of synthetic high-density water inclusions in quartz

Krüger, Yves; Mercury, Lionel; Canizarès, A.; Marti, Dominik; Simon, Patrick

doi:10.1039/c9cp03647d

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…In the far-IR region, the INS spectrum of ice III shows an absorption band from 14.2 meV to 40.1 meV (114 cm −1 to 327 cm −1 ), which matches the band from 118 cm −1 to 317 cm −1 of the PDOS. Compared with the Raman scattering results for ice III [27,28], there is a peak at 188 cm −1 , which matches the peak at 198 cm −1 in PDOS.…”

Section: Resultssupporting

confidence: 66%

Computational Analysis of Hydrogen Bond Vibrations of Ice III in the Far-Infrared Band

et al. 2022

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The hydrogen-disordered structure of ice III makes it difficult to analyze its vibrational spectrum theoretically. To clarify the contribution of hydrogen bonds (HBs), we constructed a 24-molecule supercell to mimic the real structure and performed first-principles density functional theory calculations. The calculated curve of phonon density of states showed good correspondence with the experimental data. Based on the theory of two kinds of HB vibrational modes, we analyzed the distributions of two-bond modes and four-bond modes. The energy splitting of these modes results in a flat vibrational band, which is a common phenomenon in high-pressure ice phases. These findings verified the general rule that there are two types of HB vibrations in ice, thereby furthering our understanding of HB interactions in water ice and their broad role in nature.

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Section: Resultssupporting

confidence: 66%