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学科主题: 物理化学
题名: Probing dynamical resonances and non-adiabatic effects in fundamental chemical reactions
作者: Yang XM(杨学明)
会议文集: 10th European Conference on Atoms Molecules and Photons
会议名称: 10th European Conference on Atoms Molecules and Photons
会议日期: 2010-7-5
出版日期: 2011
会议地点: Salamanca(萨拉曼卡市)
其他题名: 探测基元化学反应中的动力学共振和非绝热效应
通讯作者: 杨学明
出版者: 待补充
出版地: 待补充
合作性质: 特邀报告
部门归属: 1102
主办者: 西班牙萨拉曼卡大学
摘要: Reaction resonances, or transiently stabilized transition-state structures, have proven highly challenging to capture experimentally. Here, we used the highly sensitive H atom Rydberg tagging time-of-flight method to conduct a crossed molecular beam scattering study of the F + H2 → HF + H reaction with full quantum-state resolution. Pronounced forward-scattered HF products in the v′ = 2 vibrational state were clearly observed at a collision energy of 0.52 kcal/mol; this was attributed to both the ground and the first excited Feshbach resonances trapped in the peculiar HF(v′ = 3)-H′ vibrationally adiabatic potential, with substantial enhancement by constructive interference between the two resonances.
英文摘要: Reaction resonances, or transiently stabilized transition-state structures, have proven highly challenging to capture experimentally. Here, we used the highly sensitive H atom Rydberg tagging time-of-flight method to conduct a crossed molecular beam scattering study of the F + H2 → HF + H reaction with full quantum-state resolution. Pronounced forward-scattered HF products in the v′ = 2 vibrational state were clearly observed at a collision energy of 0.52 kcal/mol; this was attributed to both the ground and the first excited Feshbach resonances trapped in the peculiar HF(v′ = 3)-H′ vibrationally adiabatic potential, with substantial enhancement by constructive interference between the two resonances.
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115918
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Yang XM. Probing dynamical resonances and non-adiabatic effects in fundamental chemical reactions[C]. 见:10th European Conference on Atoms Molecules and Photons. Salamanca(萨拉曼卡市). 2010-7-5.
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