A study of vibronic effects: investigation on the deformation of electronic wavefunctions caused by molecular vibration
| Project/Area Number |
15H03761
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Tohoku University |
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Principal Investigator |
Watanabe Noboru 東北大学, 多元物質科学研究所, 准教授 (90312660)
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| Research Collaborator |
Filippo Morini
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Keywords | 原子・分子物理 / 電子分光 / 化学物理 / 振電相互作用 |
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| Outline of Final Research Achievements |
Coupling between electronic and nuclear motion in molecule plays important roles in various reaction processes. To investigate the vibronic effects, we have developed a method to visualize the deformation of electronic wave functions caused by molecular vibration using high-energy electron-impact ionization experiments. Furthermore, electron energy loss spectroscopy studies have been performed to elucidate how the electronic excited states are coupled to each other via molecular vibration and how the coupling affects electronic transition probabilities.
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| Academic Significance and Societal Importance of the Research Achievements |
分子の反応性が特定の分子軌道の形状に支配されることは良く知られているが、それら軌道は実際には分子振動により刻々と変化している。軌道形状の変化は分子の反応性に影響を与えるだろう。特に、多くの分子が振動励起しているプラズマ中や惑星大気中などの高温環境下において、その効果はより顕著となる。分子振動に伴う電子波動関数の歪みを可視化した本研究は、多様な環境下における反応の理解に資するとともに、新たらしい振電相互作用概念の創出に向けた貴重な一歩になるものと信じる。
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Report
(4 results)
Research Products
(35 results)
