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Ultraviolet absorption spectrum of chlorine nitrite, ClONO
Author(s) -
Molina Luisa T.,
Molina Mario J.
Publication year - 1977
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl004i002p00083
Subject(s) - stratosphere , photodissociation , chlorine , ultraviolet , absorption spectroscopy , absorption (acoustics) , photochemistry , absorption cross section , atmosphere (unit) , wavelength , chemistry , materials science , analytical chemistry (journal) , atmospheric sciences , optics , environmental chemistry , meteorology , cross section (physics) , physics , optoelectronics , quantum mechanics , composite material , organic chemistry
The near ultraviolet absorption spectrum of chlorine nitrite (ClONO) has been quantitatively investigated over the wavelength range 230‐400 nm at 231°K. An absorption maximum was observed at 290 nm with a cross section of 1.5 × 10 −18 cm². The calculated lifetime against photodissociation for ClONO in the atmosphere is 2 to 3 minutes. The large photolysis rate indicates that ClONO does not play a significant role in the stratosphere as a temporary holding tank for chlorine.