REACTION DYNAMICS OF BA+CH3BR HBR-]BABR+CH3 H

QCT calculations for reactions Ba+CH3Br and Ba+HBr on LEPS surfaces wi thin 0.01 less than or equal to E-rel less than or equal to 3.0 eV by comparison with available experimental data within 0.075 less than or equal to E-rel less than or equal to 2.31 eV have been done. The react ion dynamics of both chemical reactions have been obtained and their m echanisms have been deduced. The difference of the reaction dynamics v ia stripping and migration have been graphically described. The H atom of HBr shows enormous contribution of migration in the reaction of Ba +HBr, though the volume of H is comparably much smaller.