Effects of Rotational Excitation on Vibrationally Excited Reaction of F+H2(v=1,j=1)→HF+H at Collision Energy of 0.62 kcal/mol
The F+H2 reaction has long been a benchmark system in reaction dy-namics.We report here a combined experimental and theoretical study on the F+H2(v=1,j=1)reaction at a collision energy of 0.62 kcal/mol.The rotational state-resolved differential cross sections(DCSs)as well as the integral cross sections(ICSs)were obtained by the crossed beam experi-ment and the quantum dynamical calculation.It is found that the rotationally excited state F+H2(v=1,j=1)reaction produces rotationally hotter but vibrationally colder products,compared with the rotational ground state reaction at the same total energy.The stereody-namics of the F+H2(v=1,j=1)reaction is also analyzed theoretically,showing that minor dif-ferences exist for the reactants initially prepared in different spatial alignments.
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