## Connecting quantum state resolved scattering data directly to chemical kinetics: Energy transfer distribution functions for the collisional relaxation of highly vibrationally excited molecules from state resolved probes of the bath

An energy transfer probability distribution function, P(E,E), for the collisional relaxation of a highly vibrationally excited donor molecule (C{sub 6}F{sub 6}, pyrazine) is constructed for the first time from experimental data on the bath (CO{sub 2}) energy gain. A prescription for mapping bath quantum state resolved data onto P(E,E) is described in detail. Analysis of earlier experimental data allows a calculation of the high {Delta}E=E{minus}E region ({minus}7000 cm{sup {minus}1}{lt}E{minus}E{lt}{minus}1500 cm{sup {minus}1}) of P(E,E) for the above systems. Comparison of the P(E,E) functions reveals that C{sub 6}F{sub 6} is a more efficient donor molecule than pyrazine, in agreement with previous experimentsmore »