17376-09-9Relevant articles and documents
Quantum yield for ClOO formation following photolysis of aqueous OClO
Thomsen,Reid,Keiding
, p. 12795 - 12801 (2007/10/03)
The photochemistry of chlorine dioxide (OClO) in aqueous solution was investigated by femtosecond transient absorption spectroscopy. Following the photoexcitation of OClO at 400 nm, the transient absorption dynamics were probed in the spectral range from 400 to 220 nm. As expected from earlier studies, the main photolytic products ClO + O, formed with a quantum yield of ～90%, disappear through fast geminate recombination producing OClO in the electronic ground state. The total quantum yield for chlorine atom production is (ΦCl) ～10%, with the chlorine atom production occurring through two competing processes. The dominant channel for chlorine atom production involves the formation of a short-lived intermediate on a ～6 ps time scale with a quantum yield of 8 ± 2%. The remaining 2 ± 1% is formed through the formation and decomposition of ClOO. The lifetime of ClOO was found to be ～0.32 ns, in very good agreement with the result of a recent time-resolved resonance Raman study. Finally, the UV absorption spectrum for aqueous ClOO is reported and compared with previously reported spectra obtained in condensed media.
Kinetics of the Reactions of NO3 Radicals with Ci and ClO
Cox, R. A.,Fowles, Martin,Moulton, David,Wayne, Richard P.
, p. 3361 - 3365 (2007/10/02)
Rate coefficients for the reactions Cl + NO3 -> ClO + NO2 (2) and ClO + NO3 -> products (3) were determined from observation of the kinetic behavior of NO3 and ClO in the modulated photolysis of Cl2-ClONO2-N2 mixtures at 1 atm pressure and in the temperat
Matrix-Isolation-Infrared and Laser Raman Spectrometric Study of the Gas-Phase Reactions of Chlorine Atoms and Ozone
Bhatla, Subhash C.,Hall, John H.
, p. 2055 - 2060 (2007/10/02)
The products of the gas-phase reactions of chlorine atoms and ozone have been studied by infrared and Raman matrix isolation techniques.The primary products of the reaction of Cl atoms with excess of ozone are ClOO and OClO, produced in a nearly 1:1 ratio.As the ozone (or chlorine) concentration decreased, the primary products observed become ClOO and ClOO* (a conformational isomer of ClOO).The reactions of Cl atoms and 18O2/16O3 mixtures, coupled with the ozone concentration variation studies, are employed to suggest possible mechanisms for the formation of the products.
