Attempt for detecting reaction intermediate with a low concentration by Raman spectroscopy

Research Project

Project/Area Number	15K13628
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Physical chemistry
Research Institution	Gakushuin University
Principal Investigator	Iwata Koichi 学習院大学, 理学部, 教授 (90232678)
Research Collaborator	ONO Junpei ISHIBASHI Genki TOKITA Tsukasa
Project Period (FY)	2015-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords	ラマン分光法 / 反応中間体 / 時間分解測定 / 時間分解 / 表面増強
Outline of Final Research Achievements	We try to observe time-resolved Raman spectra of chemical reaction intermediates having a low concentration. We photoexcited trans-4-hydroxystilbene in methanol and recorded its time-resolved Raman spectra with the presence of silver colloids. The intensity of the Raman bands of trans-4-hydroxystilbene in the electronically excited state is increased approximately by a factor of two compared with the intensity of the Raman bands measured without the silver colloids. We have demonstrated that the detection of a chemical reaction intermediate by time-resolved Raman spectroscopy with surface enhancement is possible.

Report

(3 results)