Precise electrical gating of the single-molecule Mizoroki-Heck reaction

Area of Science:

• Chemical Dynamics
• Surface Science
• Nanotechnology

Background:

• Precise control over chemical reactions is crucial for scientific advancement and potential applications.
• Understanding reaction mechanisms at the single-molecule level offers deeper insights than macroscopic studies.

Purpose of the Study:

• To achieve accurate tuning of a single-molecule Mizoroki-Heck reaction using gate voltages.
• To fully elucidate the intrinsic mechanism of the Mizoroki-Heck reaction at the single-molecule level.
• To demonstrate the capability of in-situ electrical single-molecule detection for tracking reaction events.

Main Methods:

• Utilizing in-situ electrical single-molecule detection for real-time tracking.
• Applying gate voltages to control the Mizoroki-Heck reaction.
• Analyzing individual reaction events to decipher elementary steps.

Main Results:

• Demonstrated precise control over the single-molecule Mizoroki-Heck reaction via gate voltage application.
• Achieved complete deciphering of the reaction's detailed intrinsic mechanism.
• Showcased regulation of the palladium(0) catalyst's molecular orbital gating.
• Enabled on/off switching of the reaction and promotion of turnover frequency.
• Provided control over individual elementary reactions within the catalytic cycle.

Conclusions:

• Extended the scope of chemical reaction tuning from macroscopic to single-molecule levels.
• Inspired new strategies and devices for unveiling reaction mechanisms and discovering novel phenomena.
• Highlighted the potential of electrical detection for precise control and mechanistic studies of chemical reactions.