Reorientation effect in chemical reaction and orientation dependence for branching ratio of reaction products
Project/Area Number |
21550013
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Physical chemistry
|
Research Institution | Osaka University |
Principal Investigator |
CHE Dock-chil 大阪大学, 大学院・理学研究科, 助教 (20273732)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
Keywords | 化学反応 / 立体ダイナミクス / 反応分岐 / 配向分子線 / OHラジカル / 反応機構の解明 / 再配向 / アライメント状態選別 / 偏光レーザー / 準安定CO分子 / 偏向レーザー / 準安定CO(a) / 分子の最配向 / 分子の電子密度 / 分子のアライメント状態選別 / 反応制御 / 立体効果の直接観測 / 反応遷移状態 |
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.
|
Report
(4 results)
Research Products
(31 results)