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Raman Study of D 2 O at High Pressures in a Cubic Zirconia Anvil Cell
Author(s) -
Xu Jian,
Yeh Hsuehwen,
Yen Joseph,
Huang Eugene
Publication year - 1996
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199611)27:11<823::aid-jrs23>3.0.co;2-0
Subject(s) - raman spectroscopy , deuterium , cubic zirconia , chemistry , analytical chemistry (journal) , atmospheric pressure , materials science , optics , atomic physics , geology , chromatography , ceramic , physics , organic chemistry , oceanography
Using a cubic zirconia anvil cell, a Raman spectroscopic study was carried out to measure the D–O stretch modes in D 2 O as a function of varying pressure up to 16.7 GPa. The observed Raman spectra of D 2 O at room temperature show not only that the liquid is stable at atmospheric pressure, but also that two other phases, deuterated ice VI and deuterated ice VII, sequentially appear above 1.2 and 2.4 GPa, respectively. The D–O stretching wavenumbers in the three phases decrease linearly with increase in pressure. The partial ordering of deuterated ice VII, as indicated by the narrowing of the peak width of the A 1gmode can also be determined from the peak intensity ratio between the A 1gmode and the other two ( E g + B 1g ) modes. The maximum ordering of the deuterated ice VII occurs at 11.4 GPa.