Measurement of rate constants of hydrogen atom exchange with vibrationally excited H2, HD, and D2 molecules

Abstract Rate constants of hydrogen atom exchange with vibrationally excited (ν=1) H 2 , HD and D 2 have been measured. It is established that the main contribution to H + H 2 (ν = 1) and H + HD(ν = 1) reactions at temperatures of 300 K and higher is made by thermoneutral (resonance) channels of exchange. A general scheme for such reactions is proposed.