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Issue 30, 2017
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Knockout driven fragmentation of porphyrins

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Abstract

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.

Graphical abstract: Knockout driven fragmentation of porphyrins

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Publication details

The article was received on 12 Mar 2017, accepted on 30 May 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7CP01583F
Citation: Phys. Chem. Chem. Phys., 2017,19, 19750-19755
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    Knockout driven fragmentation of porphyrins

    L. Giacomozzi, M. Gatchell, N. de Ruette, M. Wolf, G. D'Angelo, H. T. Schmidt, H. Cederquist and H. Zettergren, Phys. Chem. Chem. Phys., 2017, 19, 19750
    DOI: 10.1039/C7CP01583F

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