Nonstatistical fragmentation of large molecules

Nonstatistical fragmentation of large molecules

We present experimental evidence for the dominance of prompt single-atom knockout in fragmenting collisions between large polycyclic aromatic hydrocarbon cations and He atoms at center-of-mass energies close to 100 eV. Such nonstatistical processes are shown to give highly reactive fragments. We arg...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2014-03, Vol.89 (3), Article 032701
Hauptverfasser: Stockett, M. H., Zettergren, H., Adoui, L., Alexander, J. D., Bērziņš, U., Chen, T., Gatchell, M., Haag, N., Huber, B. A., Hvelplund, P., Johansson, A., Johansson, H. A. B., Kulyk, K., Rosén, S., Rousseau, P., Støchkel, K., Schmidt, H. T., Cederquist, H.
Format: Artikel
Sprache:eng
Schlagworte:
Atomic and Molecular Clusters
Chemical Physics
fysik
Physics
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Zusammenfassung:We present experimental evidence for the dominance of prompt single-atom knockout in fragmenting collisions between large polycyclic aromatic hydrocarbon cations and He atoms at center-of-mass energies close to 100 eV. Such nonstatistical processes are shown to give highly reactive fragments. We argue that nonstatistical fragmentation is dominant for any sufficiently large molecular system under similar conditions.
ISSN:1050-2947
1094-1622
1094-1622
DOI:10.1103/PhysRevA.89.032701