Polarized Raman spectroscopic study on the solvent state of glassy LiCl aqueous solutions and the state of relaxed high-density amorphous ices

• Published in: The Journal of chemical physics Vol. 134; no. 24; p. 244511
• Main Authors: Suzuki, Yoshiharu, Tominaga, Yasunori
• Format: Journal Article
• Language: English
• Published: United States 28.06.2011
• ISSN: 1089-7690
• DOI: 10.1063/1.3603965

We measure polarized OH-stretching Raman spectra of the glassy lithium chloride aqueous solutions (LiClaq solutions) and the relaxed high-density amorphous ices (HDA). The totally OH symmetric vibrational mode around 3100 cm(-1) (g(1) mode) for the glassy LiClaq solutions of 14.3 mol% and the g(1) mode for the glassy LiClaq solution of 10.0 mol% seem to be similar to the g(1) mode for HDA at high pressure and the g(1) mode for HDA at 1 atm, respectively. This indicates that the solvent state of glassy LiClaq solution relates to the state of HDA and that the attenuation of the salt effect on water is equivalent to the attenuation of the pressure effect on water. This suggests a possibility that the hydration in electrolyte aqueous solution may relate to high-density liquid water.