| Budget Amount *help |
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥33,670,000 (Direct Cost: ¥25,900,000、Indirect Cost: ¥7,770,000)
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| Outline of Final Research Achievements |
In this project, a femtosecond time-resolved near infrared-ultraviolet spectroscopy on gas phase solvated clusters was developed, and this method was applied to the phenol-(ammonia)5 cluster to investigate the mechanism of the excited-state hydrogen transfer reaction.
The reaction dynamics was composed of an electron transfer with ca. 350 fs and a proton transfer with ca. 20 ps. This result means that the electron and the proton transfer processes proceeds in totally different time-scales, i.e. there is decoupling between the electron and the proton though this reaction is a hydrogen transfer reaction.
The decoupling mechanism stems from a strong coupling of the pi-sigma* state with a charge-separated state. Solvation strongly affects the stability of the charge separated state and also changes the degree of the decoupling.
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