HF infrared emission from the reactions of atomic fluorine with methylcyanide, methylisocyanide, dimethylsulfide and dimethyldisulfide

In the reactive systems F+CH3CN, F+CH3NC, F+CH3SCH3 and F+CH3SSCH3 infrared emission spectra were recorded from HF in the fundamental region under relaxation-free conditions. The reported vibrational distributions are for F+CH3CN: N-upsilon=1 : N-upsilon=2 : N-upsilon=3 = 0.38:0.42:0.20; for F+CH3NC: N-upsilon=1 : N-upsilon=2 : N-upsilon=3 : N-upsilon=4 = 0.46:0.32:0.17:0.05; for F+CH3SCH3: N-upsilon=1 : N-upsilon=2 : N-upsilon=3 = 0.36:0.39:0.25; for F+CH3SSCH3: N-upsilon=1 : N-upsilon=2 : N-upsilon=3 : N-upsilon=4 = 0.43:0.35:0.19:0.04. Rotational distributions are drawn up and discussed for F+CH3CN and F+CH3SCH3. There is strong evidence for the existence of two microscopic channels in all four systems investigated.