Kinetic study of the reaction of Fe(a 5DJ) with N2O from 398 to 620 K

Article abstract of DOI:10.1016/0009-2614(96)00202-3

The gas phase reactivity of Fe(a ⁵D_J) with N₂O in the temperature range 398-620 K is reported. Iron atoms were produced by the photodissociation of ferrocene and detected by laser-induced fluorescence. The reaction rates of the a ⁵D_J states are very slow and temperature dependent. The bimolecular rate constant is described in Arrhenius form by (1.41 ± 0.29) × 10^-10 exp(-44.4 ± 1.0 kJ/mol/RT) cm³ s^-1 where the uncertainties are ±2σ. The disappearance rates in the presence of N₂O are independent of buffer gas identity (Ar or N₂) and total pressure. The removal rate constants for the a ⁵D_J states are independent of J.