2011 Fiscal Year Final Research Report
Reorientation effect in chemical reaction and orientation dependence for branching ratio of reaction products
| Project/Area Number |
21550013
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
CHE Dock-chil 大阪大学, 大学院・理学研究科, 助教 (20273732)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 化学反応 / 立体ダイナミクス / 反応分岐 |
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| Research Abstract |
Direct observation of the steric effect in the OH+ HBr chemical reaction was made by controlling the OH radical orientation in order to clarify mechanisms for stereo-anisotropy. We find that the HBr collision at the O-end of OH radical is more favorable than that at the H-end. The theoretical analysis suggested that there are at least two mechanisms play roles to give the observed steric effect. One is the H atom abstraction at the O-end of OH and another is the H atom migration at the H-end of OH. Alignment of CO(a) was performed using a linearly polarized laser at 206 nm. This success will allow us to control molecular orientation at transition state in a novel way.
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