N 2 O 5  photolysis products investigated by fluorescence and optoacoustic techniques | Zendy

Barker J. R. | Zendy; Brouwer L. | Zendy; Patrick R. | Zendy; Rossi M. J. | Zendy; Trevor P. L. | Zendy; Golden D. M. | Zendy

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N 2 O 5 photolysis products investigated by fluorescence and optoacoustic techniques

Author(s) -

Barker J. R.,

Brouwer L.,

Patrick R.,

Rossi M. J.,

Trevor P. L.,

Golden D. M.

Publication year - 1985

Publication title -

international journal of chemical kinetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 68

eISSN - 1097-4601

pISSN - 0538-8066

DOI - 10.1002/kin.550170906

Subject(s) - photodissociation , chemistry , quantum yield , fluorescence , radical , torr , yield (engineering) , laser , laser induced fluorescence , analytical chemistry (journal) , photochemistry , optics , chromatography , physics , materials science , organic chemistry , metallurgy , thermodynamics

Pulsed laser photolysis of N 2 O 5 near 290 nm coupled with fluorescence detection (calibrated by NO 2 photolysis) showed that the O( 3 P) quantum yield is ≤0.1. A pulsed laser optoacoustic technique in a flow tube (ca. 6 torr of N 2 ) was tested by photolysis of NO 2 and then applied to N 2 O 5 . Nitric oxide was added to react with NO 3 free radical and the resulting increase in the optoacoustic signal confirmed the presence of NO 3 free radicals. Based on the relative optoacoustic signals observed for NO 2 and N 2 O 5 , the quantum yield for NO 3 production is 0.8 ± 0.2.

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