A resonance-mediated non-adiabatic reaction: F*(2P1/2) + HD → HF(v′ = 3) + D
Lee, Shih-Huang; Dong, Feng; Liu, Kopin; LeePermanent address: National Synchrotron Radiation Research Center, Hsinchu, Taiwan 30043. Shih-Huang; Institute of Atomic and Molecular Sciences (IAMS), Academia Sinica; DongPresent address: Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 USA. Feng; Institute of Atomic and Molecular Sciences (IAMS), Academia Sinica; Liu Kopin; Institute of Atomic and Molecular Sciences (IAMS), Academia Sinica
Журнал:
Faraday Discussions
Дата:
2004
Аннотация:
The reaction of F(<sup>2</sup>P3/2,1/2)â +â HDâ â â HF(vâ ²â =â 3)â +â D was investigated in a rotating-source, crossed-beam machine. The high translational energy resolution afforded by the Doppler-selected time-of-flight technique enabled us to distinguish the differential attributes of the HF(vâ ²â =â 3)â +â D products of the ground state (<sup>2</sup>P3/2) reaction from those due to the spinâ orbit excited (<sup>2</sup>P1/2) one. It was found that the F*(<sup>2</sup>P1/2) reactivity is significantly smaller than that for F(<sup>2</sup>P3/2), and the two state-to-state angular distributions exhibit remarkable similarities, though some differences were noted. Comparing the results with those concluded previously, we assert that both the adiabatic (F(<sup>2</sup>P3/2)â +â HD) and, in particular, the non-adiabatic (F*(<sup>2</sup>P1/2)â +â HD) reactions are predominantly mediated by a resonance mechanism for the formation of the HF(vâ ²â =â 3)â +â D channel.
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