REACTIONS OF MOLECULES IN DEFINED VIBRATIONAL-STATES (III) REACTION OF HCL(R) WITH HDCL AND BR ATOMS

The effect of selective vibrational excitation on simple neutral and endoergic reactions in the gas phase was investigated for the reactions of HCl(v) with H, D, Cl and Br atoms using the laser-excited fluorescence method combined with a discharge-flow reactor. By determining of the absolute concentration of the vibrational excited molecules, time-resolved observation of the atom concentration, and mass spectrometric detection of products from laser-induced reactions by nozzlebeam sampling, a direct distinction between reactive and inelastic pathways was possible. The results are analyzed.