Journal of Geophysical Research Atmospheres · 1988 · 26 citations · 23 references
Natural SciencesChemistryAnalytical ChemistryBiophysical ChemistrySpectroscopyOptical SpectroscopyPhotochemistryFluorescence Quantum YieldMass Spectrometric DetectionPhotodissociation KineticsPhotodissociation SpectroscopyQuantum Yield MeasurementsRotational Energy Levels
The photodissociation of pernitric acid (PNA) has been studied at 248 nm. The quantum yield for production of OH radicals is 34±16%. The yield of OH from PNA was measured relative to that from H 2 O 2 . The translational and rotational energy current of the OH photofragment from PNA has been characterized. A fluorescent emission was also observed and characterized. It is attributed to electronically excited NO 2 produced in the PNA photodissociation. A maximum yield of 30% for NO 2 * production was determined. The intensity of this emission, and a mass spectrometric peak at m / e = 33, have been found to be useful means of characterizing the purity of the PNA sample.
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