Determination of the proton affinity from the kinetics of proton transfer reactions. VI. The relative proton affinities of N2, Xe, and CO2
- 15 June 1976
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 64 (12) , 4887-4891
- https://doi.org/10.1063/1.432127
Abstract
The position of equilibrium was investigated with the flowing afterglow technique for the proton transfer reactions N2H++Xe?XeH++N2 at 297, 378, and 800°K, N2H++CO2?CO2H++N2 at 700 and 798°K, and XeH++CO2?CO2H++Xe at 800°K. The equilibrium constants measured at each temperature provided values for the proton affinity differences PA(Xe)−PA(N2) =0.63±0.19 kcal mole−1 and PA(CO2)−PA(Xe) =9.7±1.5 kcal mole−1. Rate constants were also determined for the three reactions proceeding under nonequilibrium conditions.Keywords
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