Qing-cheng HU, Hai-wen ZHAO. A Flexible Water Structure: Evidence From Raman Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3753
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3753 (2021)
Fig. 1. A sketch showing the experimental settings for the high-pressure cell combined with in situ Raman spectroscopic measurement
![Raman spectra of H2O at temperatures of 253~753 K and a pressure of 30 MPa (The data are from Ref.[28])νB: The bending mode; νL+B: The sum frequency of librational and bending; νFHW: The fully hydrogen bonded water; νPHW: The partially hydrogen bonded water](/richHtml/gpxygpfx/2021/41/12/3753/img_2.png)
Fig. 2. Raman spectra of H2O at temperatures of 253~753 K and a pressure of 30 MPa (The data are from Ref.[28])
ν B: The bending mode; ν L+B: The sum frequency of librational and bending; ν FHW: The fully hydrogen bonded water; ν PHW: The partially hydrogen bonded water
Fig. 3. Fitting and assigning of the OD/OH stretching bands
Fig. 4. Raman spectra of isotopic substitution water with V H 2 O V D 2 O
Fig. 5. Raman spectra of H2O/D2O—NaCl solutions at 273~573 K (Data are from Ref.[35])
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Table 1. The estimated tetrahedrality (Tet ; %) and average number of hydrogen bonds (n HBs) in water
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