研究・研究者
研究会・セミナー
| 演 題 | 「Heat-/Electron-/Light-/Force-induced tautomerization in a single porphycene molecule」 |
|---|---|
| 日 時 | 2016年12月27日(火) 10:00 |
| 講演者 | Dr. Takashi Kumagai （Fritz-Haber Institute of the Max-Planck Society） |
| 場 所 | 分子科学研究所 研究棟2階 201号室 |
| 概 要 |
Hydrogen transfer reactions are involved in many important physical, chemical, and biological processes. Intramolecular hydrogen transfer (tautomerization) is a fascinating model for studying the reaction dynamics and has recently gained increasing attention in the field of nanoscale science because the process resembles single-molecule switching [1,2]. We have studied tautomerization of porphycene—a structural isomer of free-base porphyrin and a good model of a double hydrogen transfer reaction [3]—by using low-temperature scanning probe microscopy (LT-SPM). Porphycene exhibits particularly interesting tautome rization behavior due to its strong intramolecular hydrogen bonds in the molecular cavity [4], and LT-SPM opens an unprecedented opportunity to investigate hydrogen transfer dynamics via the hydrogen bonds at the single-molecule level [5]. I will discuss direct observation and control of tautomerization in a single porphycene molecule on copper surfaces induced by different external stimuli—heat, tunneling electron [6–8], light [9], and force exerted by an SPM tip [10]. |
| その他 | 対応者：山本浩史（内線 7350） |
