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Published on: May 27, 2018
Intermolecular dynamics of deep eutectic solvents probed via dynamic optical Kerr effect spectroscopy
Hideaki Shirota1, Maharoof Koyakkat1
1Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan.
The Journal of Chemical Physics
|July 15, 2026
Summary
Deep eutectic solvents (DESs) exhibit unique intermolecular dynamics, crucial for their diverse applications. Spectroscopic studies reveal characteristic vibrational modes and relaxation processes, influenced by composition and environmental factors.
Area of Science:
- Chemical Physics
- Physical Chemistry
- Materials Science
Background:
- Deep eutectic solvents (DESs) are mixtures with depressed melting points, offering versatile applications.
- Their complex intermolecular interactions drive unique physical properties.
- DESs are increasingly important in materials chemistry and engineering.
Purpose of the Study:
- To investigate the intermolecular dynamics of DESs.
- To highlight the utility of dynamic optical Kerr effect spectroscopy (OKES) for studying DESs.
- To summarize current research on DES dynamics and suggest future directions.
Main Methods:
- Dynamic Optical Kerr Effect Spectroscopy (OKES) for low-frequency dynamics.
- Other spectroscopic techniques to complement OKES findings.
- Analysis of vibrational modes and relaxation processes.
Main Results:
- Identified characteristic vibrational modes and relaxation processes in DESs.
- Demonstrated the dependence of these dynamics on DES constituents.
- Observed the influence of water content and temperature on DES dynamics.
Conclusions:
- DES dynamics are complex and sensitive to composition and environment.
- OKES is a powerful tool for probing DES intermolecular interactions without probe molecules.
- Further research on DES dynamics will advance their development and applications.
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