ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The effect of ion source pressure on the cross sections for photodissociation of SO+2 has been measured systematically at λirr =4735 and 4795 A(ring). Using a Stern–Volmer treatment modified to account for the dependence of source residence time on pressure, rate constants have been measured for quenching the A˜ 2A2 (v1,v2=3,3) and A˜ 2A2(v1,v2=3,0) states of SO+2 by N2O, SO2, CO2, and N2. With SO2 and N2O as quenchers the rate constants range between 1.0 and 6.5 times the theoretical thermal capture rate constants ("Langevin limit''). The occurrence of several resonant and many near-resonant charge transfer processes is proposed to explain the unusually large rate constants.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.454566
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