Arrhenius parameters for the reaction of H atoms with GeH4
Abstract
Rate constants for H atom attack on GeH4 have been measured in pulsed photolysis experiments in the temperature range 293–473 K. H atoms were generated by the Hg-sensitized photolysis of H2 and were monitored by Lyman-α absorption. The values obtained are given by k8/cm3 s–1=(0.98 ± 0.13)× 10–10 exp[(– 926 ± 49)/T]. An evaluation of the available data on the reaction has been undertaken, and the best value for the rate constant over the temperature range 200–500 K is recommended to be k8/cm3 s–1=(1.21 ± 0.10)× 10–10 exp[(– 1008 ± 25)/T].