State-to-State Dynamical Research in the F+H2 Reaction by Zefeng Ren

By Zefeng Ren

This thesis addresses very important and in addition demanding concerns within the learn of chemical response dynamics of F+H2 method. One is to probe the response resonance and the opposite is to figure out the level of the breakdown of the Born-Oppenheimer approximation (BOA) experimentally. the writer introduces a cutting-edge crossed molecular beam-scattering gear utilizing a hydrogen atom Rydberg "tagging" time-of-flight procedure, and provides thorough state-to-state experimental experiences to handle the above concerns. the writer additionally describes the statement of the Feshbach resonance within the F+H2 response, an exact dimension of the differential pass part within the F+HD response, and validation of a brand new actual power strength floor with spectroscopic accuracy. furthermore, the writer determines the reactivity ratio among the floor nation F(2P3/2) and the excited nation F*(2P1/2) within the F+D2 response, and exploits the breakdown of BOA within the low collision energy.

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H2 reaction. In: Dalian Institute of Chemical Physics, CAS. Dalian, China 26. Qiu MH, Che L, Ren ZF et al (2005) High resolution time-of-flight spectrometer for crossed molecular beam study of elementary chemical reactions. Rev Sci Instrum 76:083107 27. 2. Energy disposal in the H ? FCO product channel. J Chem Soc, Faraday Trans 93:2721–2729 28. Ren ZF, Qiu MH, Che L et al (2006) A double-stage pulsed discharge fluorine atom beam source. Rev Sci Instrum 77:016102 29. Schnieder L, Seekamp-Rahn K, Wrede E et al (1997) Experimental determination of quantum state resolved differential cross sections for the hydrogen exchange reaction H ?

For each J curve, the solid and the dashed-line portion represent the contribution from the ground resonance and the excited resonance, respectively. 52 kcal/mol), only partial waves with J C 5 of the ground resonance contribute to the reaction, while for the excited resonance, only partial wave from J = 0–4 contribute to the reaction. From [24], reprinted with permission from AAAS Fig. 52 kcal/mol. From [24], reprinted with permission from AAAS the (103) resonance state with one-quantum vibration along the reaction coordinate, zero-quantum vibration on the bending motion (or hindered rotation), and three quanta vibration along the HF stretching.

17 kcal/mol 3 Dynamical Resonances in F ?

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