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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2017: 1.144
5-year IMPACT FACTOR: 1.144

CiteScore 2017: 1.08

SCImago Journal Rank (SJR) 2017: 0.495
Source Normalized Impact per Paper (SNIP) 2017: 0.495

Online
ISSN
2196-7156
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Volume 228, Issue 4-5

Issues

The Anomalous Fragmentation of Water Clusters at Ultrafast Impacts: An experimental and Theoretical Study

Kfir Luria / Uzi Even / Wolfgang Christen / Klaus Rademann / Tamar Raz
Published Online: 2014-01-29 | DOI: https://doi.org/10.1515/zpch-2014-0444

Abstract

Experimental results for the hypersonic impact of singly charged, mass selected, water clusters at a hard surface demonstrate cooling of the heated cluster by sequential loss of a water molecule. The trends in the experiment are most simply summarized as an evaporation. This behavior is in contrast to the shattering phenomena observed for rare gas clusters. The same information theoretic approach that predicted the shattering transition is fully consistent with the results for the water clusters. It shows that the relatively high binding energy per water monomer is the key reason for the anomalous fragmentation. The tetra coordinated oxygen atom in a cluster does however imply that the fragmentation is not a pure evaporation but has residual elements of a shattering transition. For water clusters the transition is broadened to span the finite range in energy between the onset of boiling and the energy when the solvation of the hydronium ion is over and it is bare.

Keywords: Clusters; Surface; Collision

About the article

Accepted: 2014-01-06

Received: 2013-09-02

Published Online: 2014-01-29

Published in Print: 2014-05-28


Citation Information: Zeitschrift für Physikalische Chemie, Volume 228, Issue 4-5, Pages 437–448, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1515/zpch-2014-0444.

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