Chemiluminescent Reactions of Fluorine Atoms with Inorganic Iodides in the Gas Phase

摘要

Visible chemiluminescence in the spectral range 200-900 nm has been measured for the reactions of F atoms with a range of inorganic iodides studied at reduced pressures (ca. 0.7 mbar). There is only one emitter present in all cases viz. IF* (B). The IF* (B) vibrational state distributions and rotational temperatures are essentially the same for all the systems studied. The yield of IF* can be substantially increased by adding 02 (1delta) to the flame or by increasing the F atom concentration. It is suggested that the origin of IF*(B) in these reactions and other similar systems previously studied may be the recombination reaction of spin-orbit excited iodine atoms with ground-state fluorine atoms.