215239-62-6Relevant academic research and scientific papers
Kinetics and products of the IO self-reaction
Bloss, William J.,Rowley, David M.,Cox, R. Anthony,Jones, Roderic L.
, p. 7840 - 7854 (2001)
The absorption cross-sections of the gas-phase IO radical and the kinetics of the products of the IO self-reaction was measured using laser photolysis with time-resolved ultraviolet (UV)-vis absorption spectroscopy. The IO cross sections exhibited a negative temperature dependence. Results showed the formation of a broadband absorbing product underlying the IO absorption at low wavelengths.
Absorption Cross Sections and Kinetic Considerations of the IO Radical As Determined by Laser Flash Photolysis/Laser Absorption Spectroscopy
Stickel, R. E.,Hynes, A. J.,Bradshaw, J. D.,Chameides, W. L.,Davis, D. D.
, p. 1862 - 1864 (1988)
Independent measurements of the absorption cross section of the IO radical for the A2Π-X2Π band system are reported.A value of (3.1 +/- 0.6)E-17 cm2 was observed for the (4,0) bandhead in good agreement with an earlier investigation.Results are also reported for the (5,0), (3,0), (2,0), and (1,0) bands over the wavelength range of 410-470 nm.However, no measurable (2) absorption was found for (0,0) band.The atmospheric photodissociation rate constant, JIO, for solar zenith angles of 0 deg-40 deg was calculated to have a value of 0.06 +/- 0.01 s-1.This value is a factor of 5 lower than previous estimates.Finally, the rate coefficient for the reaction IO + IO -> products (3) has been measured at 760 Torr of N2 and 300 K.The measured effective bimolecular rate constant was found to be (6.6 +/- 2)E-11 cm3*molecule-1*s-1, in good agreement with recent results by Sander (1986).
