Temperature dependent UV absorption spectra of carbonyl chloro-fluoride

The absorption cross‐sections of COClF have been measured in the wavelength range 200–260 nm at temperatures ranging from 298 to 223 K with a spectral resolution of 0.05 nm using diode array spectroscopy. The absorption cross‐sections were used to calculate photodissociation rate constants at differ...

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Veröffentlicht in:	Chemical processing (Chicago, Ill.) Ill.), 1993-04, Vol.20 (8), p.707-710
Hauptverfasser:	Nölle, Andreas, Heydtmann, Horst, Meller, Richard, Moortgat, Geert K.
Format:	Artikel
Sprache:	eng
Schlagworte:	540120 - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-) ABSORPTION SPECTRA Altitude Arrays Atmospheric composition. Chemical and photochemical reactions CHLOROFLUOROCARBONS CROSS SECTIONS Diodes DISSOCIATION Earth, ocean, space ELECTROMAGNETIC RADIATION ENVIRONMENTAL SCIENCES Exact sciences and technology External geophysics Mathematical analysis ORGANIC CHLORINE COMPOUNDS ORGANIC COMPOUNDS ORGANIC FLUORINE COMPOUNDS ORGANIC HALOGEN COMPOUNDS OZONE Photodissociation Physics of the high neutral atmosphere RADIATIONS Rate constants RESOLUTION SPECTRA SPECTROSCOPY TEMPERATURE DEPENDENCE TEMPERATURE RANGE TEMPERATURE RANGE 0065-0273 K TEMPERATURE RANGE 0273-0400 K ULTRAVIOLET RADIATION Zenith
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Beschreibung
Zusammenfassung:	The absorption cross‐sections of COClF have been measured in the wavelength range 200–260 nm at temperatures ranging from 298 to 223 K with a spectral resolution of 0.05 nm using diode array spectroscopy. The absorption cross‐sections were used to calculate photodissociation rate constants at different solar zenith angles as a function of altitude. Temperature effects of the photodissociation rate constants are discussed.
ISSN:	0094-8276 0009-2630 1944-8007
DOI:	10.1029/93GL00248