Premium
A study of the collisional quenching of O(2 1 D 2 ) by the noble gases employing time‐resolved attenuation of atomic resonance radiation in the vacuum ultraviolet
Author(s) -
Heidner R. F.,
Husain D.
Publication year - 1974
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.550060108
Subject(s) - chemistry , noble gas , excited state , atomic physics , reaction rate constant , quenching (fluorescence) , resonance (particle physics) , attenuation , absorption (acoustics) , atom (system on chip) , analytical chemistry (journal) , kinetics , fluorescence , physics , optics , computer science , embedded system , organic chemistry , chromatography , quantum mechanics
Electronically excited oxygen atoms O(2 1 D 2 ) have been generated by the pulsed irradiation of ozone in the Hartley‐band continuum and monitored photoelectrically in absorption by time‐resolved attenuation of atomic resonance radiation at λ = 115.2 nm [O(3 1 D 2 °) → O(2 1 D 2 )]. Collisional quenching of the excited atom has been investigated for all the noble gases, and the first absolute values for the second‐order deactivation rate constants are reported. The resulting rate data are discussed in terms of a curve‐crossing mechanism based on existing spectroscopic data for the noble gas oxides. The absolute rate constants are compared with previous relative rate data for the deactivation of O(2 1 D 2 ) by the noble gases.