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State-to-state study of the electron transfer reactions Ar/sup +/(/sup 2/P/sub 3/2,1/2/)+N/sub 2/(X,v = 0). -->. Ar(/sup 1/S/sub 0/) +N/sup +//sub 2/ (X,v')

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:5109138
The vibrational state distributions of N/sup +//sub 2/(X,v') ions resulting from the reactions, Ar/sup +/(/sup 2/P/sub 3//sub 3/2/)+N/sub 2/(X,v = 0)..-->..Ar(/sup 1/S/sub 0/) +N/sup +//sub 2/(X,v') (reaction (1)) and Ar/sup +/(/sup 2/P/sub 1/2/)+N/sub 2/(X,v = 0)..-->..Ar(/sup 1/S/sub 0/) +N/sup +//sub 2/(X,v') (reaction (2)), over the center-of-mass collisional energy (E/sub c.m./) range of 0.25--41.2 eV in a crossed ion--neutral beam experiment have been probed by the charge exchange method. The experimental results obtained for reaction (1) are in accord with the predictions of the semiclassical multistate calculation of Spalburg and Gislason that N/sup +//sub 2/ ions are formed predominantly (approx. >85%) in the v' = 1 state and that the production of N/sup +//sub 2/(X,v' = 0) becomes more important as E/sub c.m./ is increased. The experiment also supports the theoretical results for reaction (2) at E/sub c.m./ = 1.2 and 4.1 eV showing that approx. >80% of N/sup +//sub 2/ product ions are in the v' = 2 state. However, the calculation is found to either over-estimate the populations for N/sup +//sub 2/(v'<2) or underestimate the populations for N/sup +//sub 2/(v'>2) resulting from reaction (2) at E/sub c.m./ = 10.3
Research Organization:
Ames Laboratory, U.S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
DOE Contract Number:
W-7405-ENG-82
OSTI ID:
5109138
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 85:7; ISSN JCPSA
Country of Publication:
United States
Language:
English