science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softcon 2019 Substance: nitrogen dioxide Other Names: Formula: NO2 CAS-No.: 10102-44-0 Study: photolysis, quantum yields Authors: J. Troe Title: Are Primary Quantum Yields of NO2 Photolysis at lambda NO3 (+ M), NO3 + NO --> 2 NO2, and O + NO2 --> O2 + NO was underestimated. As a consequence, all experimental evidence so far is in favour of a low pressure primary quantum yield which is unity over the complete wavelength range 300-398 nm. A revised recommendation of quantum yields PHI for the range 300-430 nm at 298 K and 248 K is given. Author to whom correspondence should be addressed: (e-mail address):