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Irregular Shapes of Water Clusters Generated in Supersonic Expansions
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SYSNO ASEP 0427157 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Irregular Shapes of Water Clusters Generated in Supersonic Expansions Author(s) Lengyel, Jozef (UFCH-W) RID, ORCID
Pysanenko, Andriy (UFCH-W) RID, ORCID
Poterya, Viktoriya (UFCH-W) RID, ORCID
Slavíček, Petr (UFCH-W) RID
Fárník, Michal (UFCH-W) RID, ORCID
Kočišek, J. (CH)
Fedor, J. (CH)Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 112, č. 11 (2014), s. 113401Number of pages 5 s. Language eng - English Country US - United States Keywords Argon clusters ; Guest molecules ; Interaction potentials Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GAP208/11/0161 GA ČR - Czech Science Foundation (CSF) GA14-08937S GA ČR - Czech Science Foundation (CSF) Institutional support UFCH-W - RVO:61388955 UT WOS 000332925900011 EID SCOPUS 84897847955 DOI 10.1103/PhysRevLett.112.113401 Annotation We report cross sections for pickup of guest molecules on neutral argon and water clusters with the mean sizes in the range from N¯ ¼ 50 to 600. The experiments are supported by molecular dynamics simulations and analytical models based on the interaction potentials. The cross sections for argon clusters are consistent with their assumed spherical shape and follow approximately the theoretically justified N1=3 dependence. On the other hand, the cross sections of water clusters depart from this dependence and are considerably larger starting from N¯ ≥ 300. We interpret this increase of cross section by the occurrence of highly irregular shapes of water clusters produced in the supersonic expansion of water vapor under the conditions of the large cluster generation. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2015
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