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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b03394
|2 doi
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|a pubmed24n1016.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Chen, Meng
|e verfasserin
|4 aut
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|a Closest-Packing Water Monolayer Stably Intercalated in Phyllosilicate Minerals under High Pressure
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 04.03.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The directional hydrogen-bond (HB) network and nondirectional van der Waals (vdW) interactions make up the specificity of water. Directional HBs could construct an ice-like monolayer in hydrophobic confinement even in the ambient regime. Here, we report a water monolayer dominated by vdW interactions confined in a phyllosilicate interlayer under high pressure. Surprisingly, it was in a thermodynamically stable state coupled with bulk water at the same pressure (P) and temperature (T), as revealed by the thermodynamic integration approach on the basis of molecular dynamics (MD) simulations. Both classical and ab initio MD simulations showed water O atoms were stably trapped and exhibited an ordered hexagonal closest-packing arrangement, but OH bonds of water reoriented frequently and exhibited a specific two-stage reorientation relaxation. Strikingly, hydration in the interlayer under high pressure had no relevance with surface hydrophilicity rationalized by the HB forming ability, which, however, determines wetting in the ambient regime. Intercalated water molecules were trapped by vdW interactions, which shaped the closest-packing arrangement and made hydration energetically available. The high pressure-volume term largely drives hydration, as it compensates the entropy penalty which is restricted by a relatively lower temperature. This vdW water monolayer should be ubiquitous in the high pressure but low-temperature regime
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|a Journal Article
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|a Zhou, Huijun
|e verfasserin
|4 aut
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|a Zhu, Runliang
|e verfasserin
|4 aut
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|a Lu, Xiancai
|e verfasserin
|4 aut
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|a He, Hongping
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 2 vom: 21. Jan., Seite 618-627
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:2
|g day:21
|g month:01
|g pages:618-627
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|u http://dx.doi.org/10.1021/acs.langmuir.9b03394
|3 Volltext
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