dc.creator MacTaggart, J. W. en_US dc.creator Welsh, H. L. en_US dc.date.accessioned 2006-06-15T13:34:51Z dc.date.available 2006-06-15T13:34:51Z dc.date.issued 1972 en_US dc.identifier 1972-X-1 en_US dc.identifier.uri http://hdl.handle.net/1811/9171 dc.description Author Institution: Department of Physics, University of Toronto en_US dc.description.abstract The collision-induced first overtone band of $H_{2}-Ar$ gas mixtures was observed at 160 K and pressures up to 1700 atm. Previous studies at low densities showed the enhancement by argon of the three single $H_{2}$ overtone transitions $Q_{2}(1)$, $S_{2}(0)$ and $S_{2}(1)$. The present work shows that with a constant $H_{2}$ density and increasing argon densities the double $H_{2}$-transitions $Q_{1} (1,0) + Q_{1}(1)$ and $Q_{1}(1,0)+S_{1} (1)$ begin to appear at argon densities of $\sim$400 amagat. The results have two interesting features: (1) the intensities of the double $H_{2}$ transitions increase more rapidly with Ar density than the single $H_{2}$ transitions, (2) the half-widths of the double transitions are $\sim 25 \%$ less than the half-widths of the single $H_{2}$ transitions. The implication of these results for the molecular dynamics of high density studies will be discussed. en_US dc.format.extent 114159 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE ANOMALOUS BEHAVIOUR OF THE PRESSURE-INDUCED $H_{2}$ OVERTONE ABSORPTION IN DENSE $H_{2}-Ar$ GAS MIXTURES en_US dc.type article en_US
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