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A combined theoretical and experimental study of sarin (GB) decomposition at high temperatures

Abstract:
Theoretical and experimental results are presented for the pyrolytic decomposition of the nerve agent sarin (GB) in the gas phase. High level quantum chemistry calculations are performed together with a semiclassical transition state theory for describing quantum mechanical tunneling. The experimental and theoretical results for the temperature dependence of the survival times show very good agreement, as does the calculated and measured activation energy for thermal decomposition. The combined results suggest that the thermal decomposition of GB, for temperature ranging from 350 °C to 500 °C, goes through a pericyclic reaction mechanism with a transition state consisting of a six-membered ring structure.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acs.jpca.7b04282

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author


More from this funder
Funding agency for:
Shan, X
Clary, DC
Grant:
CT&S R-Cloud Tender R100010-4370
CT&S R-Cloud Tender R100010-4370
More from this funder
Funding agency for:
Shan, X
Clary, DC
Grant:
CT&S R-Cloud Tender R100010-4370
CT&S R-Cloud Tender R100010-4370


Publisher:
American Chemical Society
Journal:
Journal of Physical Chemistry A More from this journal
Volume:
121
Issue:
33
Pages:
6200–6210
Publication date:
2017-07-13
Acceptance date:
2017-07-13
DOI:
EISSN:
1520-5215
ISSN:
1089-5639


Pubs id:
pubs:709079
UUID:
uuid:3af4d2af-c388-42db-ab21-d4b37ff881fb
Local pid:
pubs:709079
Source identifiers:
709079
Deposit date:
2017-07-24

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