Ions Colliding with Cold Polycyclic Aromatic Hydrocarbon Clusters

Details Ions Colliding with Cold Polycyclic Aromatic Hydrocarbon Clusters Ions Colliding with Cold Polycyclic Aromatic Hydrocarbon Clusters

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010phrvl.105u3401h&link_type=abstract

Physical Review Letters, vol. 105, Issue 21, id. 213401

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Stability And Fragmentation Of Clusters, Charged Clusters, Molecular And Chemical Processes And Interactions

Scientific paper

We report the first experimental study of ions interacting with clusters of polycyclic aromatic hydrocarbon (PAH) molecules. Collisions between 11.25 keV He+3 or 360 keV Xe20+129 and weakly bound clusters of one of the smallest PAH molecules, anthracene, show that C14H10 clusters have much higher tendencies to fragment in ion collisions than other weakly bound clusters. The ionization is dominated by peripheral collisions in which the clusters, very surprisingly, are more strongly heated by Xe20+ collisions than by He+ collisions. The appearance size is k=15 for [C14H10]k2+.

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