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Author(s):   McClean, R.E.; Norris, L.
Title:   A kinetic study of the reactions of vanadium, iron, and cobalt with sulfur dioxide
Journal:   Phys. Chem. Chem. Phys.
Volume:   7
Page(s):   2489 - 2497
Year:   2005
Reference type:   Journal article
Squib:   2005MCC/NOR2489-2497

Reaction:   M + Co + SO2 → cyclo-SO2Co + M
Reaction order:   3
Temperature:   294 - 498 K
Pressure:  6.67E-3 - 5.33E-2 bar
Rate expression:   5.23x10-31 [±2.8x10-32 cm6/molecule2 s]
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   Rate constant is low pressure limit
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Flash photolysis (laser or conventional)
Time resolution:   In real time
Analytical technique:   Laser induced fluorescence
Comments:   Colbalt atoms were produced by the photodissociation of Co(C5H5)(CO)2, where C5H5 is cyclopentadienyl, at 248 nm. Rate constants were determined by following LIF decay rates of the atom in the presence of the substrate. The structure of the product was tentatively assigned on the basis of density functional theory calculations

The rate constant was dependent on the pressure (5 to 40 Torr of CO2) but independent of temperature over the studied range of 294 to 498 K. Results were extrpolated to the low pressure limit. Uncertainties are 2 standard deviations (2 sigma).

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