The UV-visible absorption cross-sections of IONO<sub>2</sub>
The UV-visible absorption spectrum of gaseous IONO<sub>2</sub> has been measured over the wavelength range 245--415 nm using the technique of laser photolysis with time-resolved UV-visible absorption spectroscopy. IONO<sub>2</sub> was produced in situ in the gas phase by l...
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doaj-fc13b34fec5e42eca2596be251128a502020-11-25T01:59:29ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242002-01-0123227234The UV-visible absorption cross-sections of IONO<sub>2</sub>J. C. MössingerD. M. RowleyR. A. CoxThe UV-visible absorption spectrum of gaseous IONO<sub>2</sub> has been measured over the wavelength range 245--415 nm using the technique of laser photolysis with time-resolved UV-visible absorption spectroscopy. IONO<sub>2</sub> was produced in situ in the gas phase by laser flash photolysis of NO<sub>2</sub>/CF<sub>3</sub>I/N<sub>2</sub> mixtures. Post flash spectra were deconvolved to remove contributions to the observed absorption from other reactant and product species. The resulting spectrum attributed to IONO<sub>2</sub> consists of several overlapping broad absorption bands. Assuming a quantum yield of unity for IONO<sub>2</sub><sub> </sub>photolysis, model calculations show that during sunlit hours at noon, 53° N, the first order solar photolysis rate coefficient (J value) for IONO<sub>2</sub> is 4.0 x 10<sup>-2</sup> s<sup>-1</sup>.http://www.atmos-chem-phys.net/2/227/2002/acp-2-227-2002.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
J. C. Mössinger D. M. Rowley R. A. Cox |
spellingShingle |
J. C. Mössinger D. M. Rowley R. A. Cox The UV-visible absorption cross-sections of IONO<sub>2</sub> Atmospheric Chemistry and Physics |
author_facet |
J. C. Mössinger D. M. Rowley R. A. Cox |
author_sort |
J. C. Mössinger |
title |
The UV-visible absorption cross-sections of IONO<sub>2</sub> |
title_short |
The UV-visible absorption cross-sections of IONO<sub>2</sub> |
title_full |
The UV-visible absorption cross-sections of IONO<sub>2</sub> |
title_fullStr |
The UV-visible absorption cross-sections of IONO<sub>2</sub> |
title_full_unstemmed |
The UV-visible absorption cross-sections of IONO<sub>2</sub> |
title_sort |
uv-visible absorption cross-sections of iono<sub>2</sub> |
publisher |
Copernicus Publications |
series |
Atmospheric Chemistry and Physics |
issn |
1680-7316 1680-7324 |
publishDate |
2002-01-01 |
description |
The UV-visible absorption spectrum of gaseous IONO<sub>2</sub> has been measured over the wavelength range 245--415 nm using the technique of laser photolysis with time-resolved UV-visible absorption spectroscopy. IONO<sub>2</sub> was produced in situ in the gas phase by laser flash photolysis of NO<sub>2</sub>/CF<sub>3</sub>I/N<sub>2</sub> mixtures. Post flash spectra were deconvolved to remove contributions to the observed absorption from other reactant and product species. The resulting spectrum attributed to IONO<sub>2</sub> consists of several overlapping broad absorption bands. Assuming a quantum yield of unity for IONO<sub>2</sub><sub> </sub>photolysis, model calculations show that during sunlit hours at noon, 53° N, the first order solar photolysis rate coefficient (J value) for IONO<sub>2</sub> is 4.0 x 10<sup>-2</sup> s<sup>-1</sup>. |
url |
http://www.atmos-chem-phys.net/2/227/2002/acp-2-227-2002.pdf |
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