Temperature dependence of pentyl nitrate formation from the reaction of pentyl peroxy radicals with NO.
Alkyl nitrate yields from the reaction of 1-pentyl, 2-pentyl and 2-methyl-2-butyl peroxy radicals with NO have been determined over the temperature range (261-305 K) and at 1 bar pressure from the photo-oxidation of the iodoalkane precursors in air-NO mixtures. Yields were observed to increase with decreasing temperature and, contrary to previous observations, along the series primary < secondary congruent with tertiary. Our results suggests a significant temperature dependence for the formation of nitrates from the reaction of pentyl peroxy radicals with NO and represent an extension in the temperature range over which this reaction has been studied experimentally in the past.
Centre for Atmospheric Science, University Chemical Laboratory, Lensfield Road, Cambridge, UK. pc254@cam.ac.uk
Paola
P
Cassanelli
David J
DJ
Fox
R Anthony
RA
Cox
D002073:Butanes / Q000737:chemistry; D005609:Free Radicals; D017665:Hydroxyl Radical; D008027:Light; D008956:Models, Chemical; D008962:Models, Theoretical; D009566:Nitrates / Q000737:chemistry; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D010420:Pentanes / Q000737:chemistry*; D010545:Peroxides / Q000737:chemistry*; D010777:Photochemistry / Q000379:methods; D011312:Pressure; D013696:Temperature
D002073:Butanes; D005609:Free Radicals; D009566:Nitrates; D010420:Pentanes; D010545:Peroxides; C049375:perhydroxyl radical; D009569:Nitric Oxide; D017665:Hydroxyl Radical; C033353:pentane; C046888:butane; D010100:Oxygen