science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2020

Substance: formaldehyde oxide				Other Names: formaldehyde carbonyl oxide

Formula: CH2OO						CAS-No.: 

Study: uv absorption cross sections, kinetics

                
Authors: Z.S. Mir, T.R. Lewis, L. Onel, M.A. Blitz, P.W. Seakins, D. Stone

Title: CH2OO Criegee Intermediate UV absorption cross-sections and kinetics of CH2OO + CH2OO and CH2OO + I as a function of pressure

Journal/Source: PCCP, 22, 9448-9459, (2020); https://doi.org/10.1039/D0CP00988A


Data: table, diagram

Energy/Wavelength range: 280 - 450 nm

Resolution: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 6 - 300 Torr (total pressure N2)

Phase: gas

pH:


Comments: Absolute CH2OO cross-sections in the wavelength range 280-450 nm are presented. A peak absorption cross-section of (1.37 ± 0.29) x 10-17 cm2 at ~ 340 nm has been measured.