Physics – Geophysics
Scientific paper
Jun 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.1395b&link_type=abstract
Geophysical Research Letters, Volume 24, Issue 11, p. 1395-1398
Physics
Geophysics
2
Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Instruments And Techniques, Exploration Geophysics: Instruments And Techniques, Information Related To Geographic Region: Antarctica
Scientific paper
ClOOCl was prepared in situ in two static reactors and in a flow tube by photolyzing OClO or by the reaction of Cl with O3, at temperatures <=253K. IR and UV spectra were monitored simultaneously, and concentrations of ClOOCl were determined from the known UV absorption cross sections. Based on these concentrations, absorption coefficients and integrated band intensities of the ν5 and ν1 bands of ClOOCl near 650cm-1 and 750cm-1 were derived for spectral resolutions between 1 and 0.125cm-1 using a FTIR spectrometer. Diode laser spectra of several regions of the ν5 band demonstrate that the rotational structure of this band can be resolved at total pressures of several mbar. The low line intensities of the 650cm-1 band, however, do not allow to detect ClOOCl by airborne diode laser absorption at today's detection sensitivities.
Becker Karl-Heinz
Brust A. S.
Zabel F.
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