Metastable dissociation of anions formed by electron attachment.
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.
Zappa
Fabio
F
Institut für Ionenphysik und Angewandte Physik, Leopold Franzens Universität Innsbruck, Austria.
Beikircher
Manuel
M
Mauracher
Andreas
A
Denifl
Stephan
S
Probst
Michael
M
Injan
Natcha
N
Limtrakul
Jumras
J
Bacher
Arntraud
A
Echt
Olof
O
Märk
Tilmann D
TD
Scheier
Paul
P
Field
Thomas A
TA
Graupner
Karola
K
D000838:Anions / Q000737:chemistry; D004136:Dinitrobenzenes / Q000737:chemistry*; D004583:Electrons; D007700:Kinetics; D009569:Nitric Oxide / Q000737:chemistry; D011789:Quantum Theory; D055672:Static Electricity; D013997:Time Factors
D000838:Anions; D004136:Dinitrobenzenes; D009569:Nitric Oxide; C016403:2,4-dinitrotoluene