Recent Progress in the Manipulation of Molecules with DC Electric Fields

Area of Science:

• Physical Chemistry
• Chemical Physics
• Molecular Dynamics

Background:

• Intermolecular interactions, primarily electrostatic, govern molecular structure and reactivity in condensed phases.
• Understanding electrostatic field influence is key to controlling chemistry in molecular systems.
• External electrostatic fields can be a powerful tool for manipulating molecular processes.

Purpose of the Study:

• To describe recent progress in manipulating molecular processes using external DC electrostatic fields.
• To investigate molecular behaviors under strong electrostatic fields.
• To broaden the understanding of electrostatic manipulation of molecules.

Main Methods:

• Application of high-strength electrostatic fields (up to 4 × 10⁸ V/m) using the ice film nanocapacitor method.
• Preparation of chemically tailored molecular systems via thin film growing techniques in vacuum.
• Monitoring molecular response using reflection-absorption infrared spectroscopy.

Main Results:

• Demonstrated manipulation of molecular orientation and intramolecular dynamics.
• Observed stereodynamic control of chemical reactivity, exemplified by proton transfer reactions.
• Investigated diverse molecular systems including small molecules, clusters, and films in various phases.

Conclusions:

• Strong electrostatic fields can effectively control molecular orientation, dynamics, and reactivity.
• This research enhances understanding of molecular behavior in electric fields.
• Findings are relevant to physical and biological sciences where electric fields influence molecular functions.