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Metastable Dissociation of Anions Formed by Electron Attachment |
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| Authors: | Fabio Zappa Dr Manuel Beikircher Andreas Mauracher Stephan Denifl Dr Michael Probst Prof Dr Natcha Injan Jumras Limtrakul Arntraud Bacher Dr Olof Echt Prof Dr Tilmann D Märk Prof Dr Paul Scheier Prof Dr Thomas A Field Prof Dr Karola Graupner |
| Institution: | 1. Institut für Ionenphysik und Angewandte Physik, Leopold Franzens Universit?t Innsbruck, Austria, Fax: (+43) 603‐862‐2998;2. Current address: Department of Chemistry and Center of Nanotechnology, Kasetsart University, Bangkok 10900, Thailand;3. Permanent address: Department of Physics, University of New Hampshire, Durham, NH 03824, USA;4. Permanent address: Department of Experimental Physics, Comenius University, SK‐84248 Bratislava (Slovak Republic);5. Centre for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast, Belfast BT7 1NN, UK |
| Abstract: | A comprehensive analysis of metastable dissociation of 2,4‐dinitrotoluene (DNT) parent anions formed by attachment of electrons of controlled energy is presented. We characterize the energy dependence and kinetic energy release of the reaction which competes with autodetachment. A surprising finding is a highly exothermic metastable reaction triggered by the attachment of thermal electrons which we relate to the well‐known electrostatic ignition hazards of DNT and other explosives. Quantum chemical calculations are performed for dinitrobenzene in order to elucidate the process of NO abstraction. |
| Keywords: | anions energy release explosives metastable compounds reaction mechanisms |