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Related Experiment Video

Updated: Jun 8, 2026

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

Tuning-up and driving a redox-active rotor.

Shoko Kume¹, Hiroshi Nishihara

¹Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. kume@chem.s.u-tokyo.ac.jp

Chemical Communications (Cambridge, England)

|September 22, 2010

Summary

Researchers tuned copper(I) coordination environments for dynamic rotational behavior by adjusting substituent size. This rotation, sensitive to weak interactions, was triggered by a redox reaction involving a ferrocenyl group and charge interactions.

Related Experiment Videos

Last Updated: Jun 8, 2026

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

Area of Science:

Coordination Chemistry
Supramolecular Chemistry
Molecular Machines

Background:

Bistable rotational behavior in coordination compounds is crucial for molecular machines.
Tuning rotor dynamics requires precise control over molecular interactions.
Ferrocenyl moieties are effective redox-active components in molecular systems.

Purpose of the Study:

To investigate the rational tuning of dynamic bistable rotational behavior in copper(I) coordination environments.
To explore the influence of substituent size on rotor dynamics.
To demonstrate redox-driven rotation using a ferrocenyl moiety.

Main Methods:

Synthesis of copper(I) complexes with varying substituent sizes.
Spectroscopic and crystallographic analysis to characterize the coordination environment.
Electrochemical studies to probe redox activity and rotational mechanisms.

Main Results:

Demonstrated that substituent size on the rotor rationally tunes the bistable rotational behavior.
Observed sensitivity of the rotors to weak interactions.
Confirmed redox-driven rotation initiated by a ferrocenyl moiety through charge interaction reconstruction.

Conclusions:

Substituent engineering provides a method for controlling dynamic rotation in copper(I) coordination systems.
The developed rotors are responsive to external stimuli like redox changes.
This work advances the design principles for molecular machines and switches.