Reactions of excited atomic iodine (52P½). Part 1.—Reaction with propane of I(52P½), produced by irradiation in continuum of the B3Π0u+–X1Σ+g system, and by collisional release in the banded region

Abstract

From the kinetics of formation of isopropyl iodide produced by irradiation of C₃H₈+I₂ mixtures with visible light, it was concluded that reaction is due to H atom abstraction by I(5²P_½). Excited atoms were produced at wavelengths above the 4995 Å threshold, due to collisional release, viz. I^* ₂+M →I M+I^*. Similar efficiencies for release were found in CO₂, N₂, Ar, C₃H₈ and H₂.