Structure of high-density amorphous water. I. X-ray diffraction study - Sorbonne Université
Article Dans Une Revue The Journal of Chemical Physics Année : 1987

Structure of high-density amorphous water. I. X-ray diffraction study

Résumé

X-ray diffraction measurements up to momentum transfer q=16 Å−1 were performed at atmospheric pressure on both the high-density form of amorphous ice obtained by pressurization of crystalline ice Ih at 77 K up to 2 GPa and the low-density form obtained by further heating. These two amorphous phases exhibit significant differences at the level of the second- and third-nearest neighbors which involve a decrease of the O–O–O angle on compression at high pressure. Moreover, it is found that the low-density form is quite similar to that obtained by vapor deposition on cooled substrates at 77 K.

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Chimie
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Dates et versions

hal-04643292 , version 1 (10-07-2024)

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Citer

A. Bizid, Louis Bosio, André Defrain, M. Oumezzine. Structure of high-density amorphous water. I. X-ray diffraction study. The Journal of Chemical Physics, 1987, 87 (4), pp.2225-2230. ⟨10.1063/1.453149⟩. ⟨hal-04643292⟩
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