The Dynamical Study of the Reactions Ba+C₆H₅I、p-C₆H₄INH₂、C₆H₅Br、m,p-C₆H₄BrCH₃ by Means of LIF and Molecular Beam

The LIF spectra and the relative reaction cross sections of the reactions C₆H₅I、 p-C₆H₅INH₂、n-C₄H₉I、C₆H₅Br、m,p-C₆H₄BrCH₃、n-C₄H₉Br、 c-C₆H₁₁Br have been measured in a beam-gas arrangement in this paper. The results show that the vibrational distribution of the BaBr products and the reactive cross sections for the reactions Ba+m.p-C₆H₄BrCH₃ are nearly alike. The vibrational excitations of the BaBr and reactive cross sections of the reactions Ba+m,p-C₆H₄BrCH₃ are smaller than those of the reaction Ba+C₆H₅Br, but the vibrational excitation of the BaI product and the reactive cross section of the reaction Ba+p-C₆H₄INH₂ are bigger than those of the reaction Ba+C₆H₅I. The results mentioned above have been qualitatively explained according to a reactive mechanism, which was suggested in reference1.