[3P01-27] Poster

[3P09S] Redox reaction of a single Ferrocene derivative observed by electrochemical scanning tunneling microscope

*Yuzu Kobayashi^1,2, Misun Hong¹, Raymond Wong¹, Yasuyuki Yokota^1,3, Jun Takeya², Yousoo Kim¹ (1. RIKEN, 2. Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo,, 3. JST PRESTO)

The reactivity of redox reactions is greatly affected by the local structure of the electrode surface on a single-atom/single-molecular scale. Although it is strongly required to investigate the redox reactions on a molecular scale, the number of those reports is limited due to the difficulty of performing in situ measurement with high spatial resolution. In this study, redox reaction of a single ferrocene molecule was observed using an electrochemical scanning tunneling microscope (EC-STM), which is a combination of a scanning tunneling microscope (STM) and electrochemistry (EC). Using a tripod-type molecule as a base, we could stably deposit ferrocenes on the Au (111) electrode both in an isolated and dispersed state, which enables us to observe clear changes in the EC-STM images upon the redox reaction.