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Reactive collisions for NO((2)Π) + N((4)S) at temperatures relevant to the hypersonic flight regime

Denis-Alpizar, Otoniel and Bemish, Raymond J. and Meuwly, Markus. (2017) Reactive collisions for NO((2)Π) + N((4)S) at temperatures relevant to the hypersonic flight regime. Physical Chemistry Chemical Physics, 19 (3). pp. 2392-2401.

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Official URL: http://edoc.unibas.ch/53175/

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Abstract

The NO(X(2)Π) + N((4)S) reaction which occurs entirely in the triplet manifold of N2O is investigated using quasiclassical trajectories and quantum simulations. Fully-dimensional potential energy surfaces for the (3)A' and (3)A'' states are computed at the MRCI+Q level of theory and are represented using a reproducing kernel Hilbert space. The N-exchange and N2-formation channels are followed by using the multi-state adiabatic reactive molecular dynamics method. Up to 5000 K these reactions occur predominantly on the N2O (3)A'' surface. However, for higher temperatures the contributions of the (3)A' and (3)A'' states are comparable and the final state distributions are far from thermal equilibrium. From the trajectory simulations a new set of thermal rate coefficients of up to 20 000 K is determined. Comparison of the quasiclassical trajectory and quantum simulations shows that a classical description is a good approximation as determined from the final state analysis.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Physikalische Chemie (Meuwly)
UniBasel Contributors:Meuwly, Markus
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Royal Society of Chemistry
ISSN:1463-9076
e-ISSN:1463-9084
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:02 Jul 2019 08:15
Deposited On:25 Jan 2017 10:21

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