science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2020 Substance: hydroperoxy radical Other Names: hydroperoxo Formula: HO2 CAS-No.: 3170-83-0 Study: nir spectroscopy Authors: J. Thiebaud, S. Crunaire, C. Fittschen Title: Measurements of Line Strengths in the 2v1 Band of the HO2 Radical Using Laser Photolysis/Continuous Wave Cavity Ring-Down Spectroscopy (cw-CRDS) Journal/Source: J. Phys. Chem. A, 111 (30), 6959-6966, (2007); DOI: 10.1021/jp0703307 Data: diagram, table Energy/Wavelength range: 6604 - 6696 cm-1 (~ 1493.4 - 1514.2 nm) Resolution: 0.003 cm-1 Temperature: 298 K Temperature dependence: no Pressure/Concentration: 50 Torr (He) Phase: gas pH: Comments: The most important absorption feature in this wavelength range was found at 6638.20 cm-1, exhibiting an absorption cross section of sigma = 2.72 × 10-19 cm2 at 50 Torr He. Author to whom correspondence should be addressed: (e-mail address):