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Lifetimes and Quenching of the Ā 2 A′(υ3′ = 0 – 2) → X̄ 2 A″ Fluorescence of HSO
Author(s) -
Hung WenChing,
Lee YuanPern
Publication year - 1993
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199300064
Subject(s) - chemistry , fluorescence , quenching (fluorescence) , excited state , analytical chemistry (journal) , atomic physics , laser induced fluorescence , arc (geometry) , resonance fluorescence , optics , chromatography , physics , geometry , mathematics
Fluorescence lifetimes of vibrational levels of the first electronically excited state (Ā 2 A′) of HSO, determined by the technique of discharge flow and laser‐induced fluorescence, are 81 ± 10, 74 ± 8, and 76 ± 14 μs for υ 3 ′ = 0, 1 and 2, respectively. The rate coefficients of quenching of each level by He, N 2 , O 2 and O 3 were measured; the coefficients for HSO (Ā, υ 3 ′ = 0 – 2) quenched by O 3 arc 35–50 times as great as those of HSO by He.