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Details of Award

NERC Reference : NER/T/S/2002/00030

Theoretical studies of key atmospheric association reactions: OH + NO2.

Grant Award

Principal Investigator:
Professor Sir D Clary, University of Oxford, Chemistry (Dyson Perrins)
Co-Investigator:
Dr D Rowley, University College London, Chemistry
Co-Investigator:
Professor N Kaltsoyannis, The University of Manchester, Chemistry
Science Area:
Atmospheric
Overall Classification:
Atmospheric
ENRIs:
Pollution and Waste
Global Change
Science Topics:
Atmospheric Kinetics
Abstract:
The reaction OH+NO2+M --> HONO2+M is a key chemical reaction in the atmosphere that forms the nitric acid reservoir. There are current major uncertainties in the rate constant. It has been suggested that the reaction of OH with NO2 can also produce pernitrous acid (HOONO) and it is possible that this second channel is contributing to the uncertainty in the rate constant for producing HONO2. This project will extend to these polyatomic association reactions a new first-principles quantum theory recently developed by Clary and Charlo. The rate constant for the formation of both HONO2 and HOONO will be calculated as a function of temperature and pressure. The theory will combine quantum scattering methods for capture rates, resonances and vibrational energy transfer with high-quality electronic structure calculations of the potential energy surfaces.
Period of Award:
1 Nov 2002 - 31 Oct 2005
Value:
£101,366
Authorised funds only
NERC Reference:
NER/T/S/2002/00030
Grant Stage:
Completed
Scheme:
Directed Pre FEC
Grant Status:
Closed

This grant award has a total value of £101,366  

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FDAB - Financial Details (Award breakdown by headings)

Total - T&STotal - StaffTotal - Other CostsTotal - EquipmentTotal - Indirect Costs
£2,075£62,045£5,189£3,514£28,540

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