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X-ray Scattering an...
X-ray Scattering and O-O Pair-Distribution Functions of Amorphous Ices
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- Mariedahl, Daniel (author)
- Stockholms universitet,Fysikum
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- Perakis, Fivos (author)
- Stockholms universitet,Fysikum
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- Späh, Alexander (author)
- Stockholms universitet,Fysikum
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- Pathak, Harshad (author)
- Stockholms universitet,Fysikum
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- Kim, Kyung Hwan (author)
- Stockholms universitet,Fysikum
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- Camisasca, Gaia (author)
- Stockholms universitet,Fysikum
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- Schlesinger, Daniel (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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Benmore, Chris (author)
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- Pettersson, Lars Gunnar Moody (author)
- Stockholms universitet,Fysikum
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- Nilsson, Anders (author)
- Stockholms universitet,Fysikum
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- Amann-Winkel, Katrin (author)
- Stockholms universitet,Fysikum
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(creator_code:org_t)
- 2018-07-23
- 2018
- English.
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In: Journal of Physical Chemistry B. - : American Chemical Society (ACS). - 1520-6106 .- 1520-5207. ; 122:30, s. 7616-7624
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https://doi.org/10.1...
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https://pubs.acs.org...
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Abstract
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- The structure factor and oxygen-oxygen pair distribution functions of amorphous ices at liquid nitrogen temperature (T = 77 K) have been derived from wide-angle X-ray scattering (WAXS) up to interatomic distances of r = 23 angstrom, where local structure differences between the amorphous ices can be seen for the entire range. The distances to the first coordination shell for low-, high-, and very-high-density amorphous ice (LDA, HDA, VHDA) were determined to be 2.75, 2.78, and 2.80 angstrom, respectively, with high accuracy due to measurements up to a large momentum transfer of 23 angstrom(-1). Similarities in pair-distribution functions between LDA and supercooled water at 254.1 K, HDA and liquid water at 365.9 K, and VHDA and high-pressure liquid water were found up to around 8 angstrom, but beyond that at longer distances, the similarities were lost. In addition, the structure of the high-density amorphous ices was compared to high-pressure crystalline ices IV, IX, and XII, and conclusions were drawn about the local ordering.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Mariedahl, Danie ...
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Perakis, Fivos
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Späh, Alexander
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Pathak, Harshad
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Kim, Kyung Hwan
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Camisasca, Gaia
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show more...
-
Schlesinger, Dan ...
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Benmore, Chris
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Pettersson, Lars ...
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Nilsson, Anders
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Amann-Winkel, Ka ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Journal of Physi ...
- By the university
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Stockholm University