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Knockout driven fragmentation of porphyrins
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
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Number of Authors: 8
2017 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 19, no 30, 19750-19755 p.Article in journal (Refereed) Published
Abstract [en]

We have studied collisions between tetraphenylporphyrin cations and He or Ne at center-of-mass energies in the range 50-110 eV. The experimental results were interpreted in view of density functional theory calculations of dissociation energies and classical molecular dynamics simulations of how the molecules respond to the He/Ne impact. We demonstrate that prompt atom knockout strongly contributes to the total destruction cross sections. Such impulse driven processes typically yield highly reactive fragments and are expected to be important for collisions with any molecular system in this collision energy range, but have earlier been very difficult to isolate for biomolecules.

Place, publisher, year, edition, pages
2017. Vol. 19, no 30, 19750-19755 p.
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Physical Sciences
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URN: urn:nbn:se:su:diva-147092DOI: 10.1039/c7cp01583fISI: 000407053000024PubMedID: 28627574OAI: oai:DiVA.org:su-147092DiVA: diva2:1148765
Available from: 2017-10-12 Created: 2017-10-12 Last updated: 2017-10-12Bibliographically approved

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Giacomozzi, LindaGatchell, Michaelde Ruette, NathalieWolf, MichaelD'Angelo, GiovannaSchmidt, Henning T.Cederquist, HenrikZettergren, Henning
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