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The molecular structure of alcohol-water mixtures determined by soft-X-ray absorption and emission spectroscopy
- Guo, J. H. (author)
-
- Luo, Yi (author)
- KTH,Bioteknologi
-
- Augustsson, A. (author)
- Uppsala universitet,Fysiska institutionen,Fysik II,Fysik 2
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- Shuh, D. (author)
- Zhuang, V. (author)
- Ross, P. (author)
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- (creator_code:org_t)
- Elsevier BV, 2004
- 2004
- English.
- In: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048 .- 1873-2526. ; 137-40:SI, s. 425-428
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We have examined the influence of the intermolecular interaction on the local electronic structure by using X-ray absorption and emission spectra of liquid methanol, water, and their mixtures (in molar ratios of 9:1 and 7:3). We find a strong involvement of hydrogen bonding in the mixing of water and methanol molecules. The local electronic structure of water and methanol clusters, where water cluster is bridging within a 6-member open-ring structured methanol cluster, is separately determined. The experimental findings suggest an incomplete mixing of water-alcohol systems and a strong self- association between methanol chain and water cluster through hydrogen bonding. The enhancement of joint water-methanol open-ring structure owes the explanation to the loss of entropy of the aqueous solutions.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- alcohol-water mixtures
- intermolecular interaction
- X-ray absorption
- X-ray emission
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Zhuang, V.
- Ross, P.
- Ågren, Hans
- Nordgren, Joseph
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