Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
96 (1992), S. 8128-8135
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
A translational spectroscopy technique is used to obtain predissociation kinetic energy release spectra from the lowest bound states of H3, 2s 2A'1 and 2p 2A‘2. These H@B|3 states are formed in near-resonant electron capture by 3 keV H+3 in Cs vapor. Their ground rovibrational levels are energetically about 1 eV above the H+H+H dissociation limit, thus all levels can yield both H2+H and the three-body products. The spectra contain both three-body and two-body components and are deconvoluted to obtain the branching ratios. Data obtained from two different ion sources show that the three-body/two-body ratio increases with increased rovibrational energy in the H*3. The results are compared to recent theory and with previously reported ratios from dissociative recombination of H+3. The comparison suggests that the ratio increases monotonically with the total electronic and rovibrational energy in the H@B|3. D*3 predissocation has a similar behavior. The H- and D-atom spectra from the two-body decay of HD@B|2 show that the ejected H atom is strongly favored on a per-atom basis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.462315
Permalink
|
Location |
Call Number |
Limitation |
Availability |
