dc.creator Wilcomb, Bruce E. en_US dc.creator Mayer, T. M. en_US dc.creator Bernstein, Richard B. en_US dc.creator Bickers, R. W. en_US dc.date.accessioned 2006-06-15T13:46:22Z dc.date.available 2006-06-15T13:46:22Z dc.date.issued 1976 en_US dc.identifier 1976-RC-7 en_US dc.identifier.uri http://hdl.handle.net/1811/9689 dc.description Author Institution: Departments of Chemistry and Physics, University of Texas en_US dc.description.abstract The endoergic reaction of ground state Hg atoms with $I_{2}$ has been studied in the vicinity of the reaction threshold via the crossed molecular beam scattering technique. The observed reaction cross section increases monotonically with relative translational energy. Model functionalities for the post-threshold energy dependence of the cross section (convoluted with the experimentally determined distributions of relative translational energy) have been compared with the experimental cross section function to yield a threshold energy of $1.18 \pm 0.03 eV$, This value implies a lower bound for the dissociation energy $D_{0}$(HgI) of 0.36 eV. Reinterpretation of existing spectroscopic data for HgI via the LeRoy-Bernstein modified Birge-Sponer extrapolation procedure yields a value of $D_{0}(HgI) = 0.390 \pm 0.021 eV$. Combining these results, the barrier for the reverse reaction is deduced to be $0,03^{+0.04}_{-0.04 -0.03}$ eV. en_US dc.format.extent 151236 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title MOLECUIAR BEAM MEASUREMENT OF THE THRESHOLD ENERGY FOR THE REACTION $Hg(6^{1}S_{O}) + I_{2}(X^{1}\Sigma ^{+}_{g}) \rightarrow HgI(X^{2}\Sigma ^{+}) + I(5^{2}P_{3/2})$: REDETERMINATION OF THE DISSOCIATION ENERGY OF HgI en_US dc.type article en_US
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