Reactions and quenching of vibrationally excited hydroxyl radicals

Autor:	G. E. Streit, Harold S. Johnston
Rok vydání:	1976
Předmět:	Ozone Quenching (fluorescence) Hydrogen Radical Overtone General Physics and Astronomy chemistry.chemical_element Photochemistry chemistry.chemical_compound Reaction rate constant chemistry Excited state Physical and Theoretical Chemistry Visible spectrum
Zdroj:	The Journal of Chemical Physics. 64:95-103
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.431917
Popis:	Rate constants for the deactivation of vibrationally excited hydroxyl radicals by the inert gases Ar, O2, N2, H2, and D2 have been determined. Additionally the rate constants for the reaction HO(v)+O3→ products have been measured and found to decrease from 11×10−12 to 3.7×10−12 cm3 molecule−1⋅ sec−1 from v=9 to v=4. Hydroxyl radicals were generated in a large tank at low pressures from the reaction of hydrogen atoms and ozone. The radicals were formed in excited vibrational states (v?9), and the excited radicals, v=4 to 9, were observed by visible light emission from high overtone transitions. Vibrational populations and the rate constants for loss processes were deduced from observations over a wide range of wavelength and pressure fitted to a comprehensive model of the system.
Databáze:	OpenAIRE
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