title: Observation of a reactive resonance in the integral cross section of a six-atom reaction: F+CHD3.
abstract: The title reaction was investigated under crossed-beam conditions at collisional energies ranging from about 0.4 to 7.5 kcal/mol. Product velocity distributions were measured by a time-sliced, velocity-map imaging technique to explicitly account for the density-to-flux transformation factors. Both the state-resolved, pair-correlated excitation functions and vibrational branching ratios are presented for the two isotopic product channels. An intriguing resonance tunneling mechanism occurring near the reaction threshold for the HF+CD3 product channel is surmized, which echoes the reactive resonances found previously for the F+HD-->HF+D reaction and more recently for the F+CH4 reaction.
authors.affiliation: The Institute of Atomic and Molecular Sciences (IAMS), Academia Sinica, P.O. Box 23-166, Taipei, Taiwan 106.
authors.forename: Jingang
authors.initials: J
authors.lastname: Zhou
authors.forename: Jim J
authors.initials: JJ
authors.lastname: Lin
authors.forename: Kopin
authors.initials: K
authors.lastname: Liu