The dynamics of the reactions F+IX→IF+X (X=Cl, Br, I): A laser‐induced fluorescence study

摘要: The internal product state distributions of IF formed in the homologous exoergic reactions F+IX→IF+X (X=Cl, Br, I) were measured by laser‐induced fluorescence technique. study was carried out with crossed molecular beams at collision energies ∼3.2 kJ mol−1. observed bimodal vibrational indicate microscopic branching. average fraction total energy available channeled into vibration is modest case X=Br, Cl (〈f′V〉=0.37, 0.27) and very low for X=I (〈f′V〉=0.07). For reaction F+ICl, rotational population analysis could be out. excitation found to 〈f′R〉=0.16. amount translational 〈f′T〉=0.15 determined Wong Lee F+I2. Since this value also low, a substantial exoergicity must electronic 2P1/2 halogen atoms. are interpre...