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Communication Dans Un Congrès Année : 2015

Non-statistical fragmentation of large molecules in collisions with atoms

Résumé

Non-statistical fragmentation processes are important when Polycyclic Aromatic Hydrocarbon (PAH) molecules, fullerenes, or other large molecules collide with atoms at center- of-mass energies from a few tens to a few hundreds of eV. The typical result is the prompt, billiard-ball-like knockout of single atoms (CHx-loss). This is distinct from the well-known statistical fragmentation patterns of these molecules, which are dominated by H- and C2H2-loss for PAHs and C2-loss for fullerenes. We have explored the role of non-statistical fragmentation of PAHs and fullerenes in a series of experimental and theoretical studies. In general, the yield of non-statistical fragments depends sensitively on their stability against secondary statistical fragmentation following knockout.

Dates et versions

hal-01240342 , version 1 (09-12-2015)

Identifiants

Citer

M H Stockett, L Adoui, E K Anderson, T Chen, J-y Chesnel, et al.. Non-statistical fragmentation of large molecules in collisions with atoms. XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015), Jul 2015, Toledo, Spain. pp.012036, ⟨10.1088/1742-6596/635/1/012036⟩. ⟨hal-01240342⟩
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