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Updated: Mar 22, 2026

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
Published on: May 27, 2018
Vibrational Spectroscopy and Dynamics of Water
Fivos Perakis1, Luigi De Marco2,3, Andrey Shalit4
1SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States.
Vibrational spectroscopy reveals insights into water's hydrogen-bond network dynamics across different states. Comparing various techniques provides a unified view of water's structure, dynamics, and energy dissipation.
Area of Science:
- Physical Chemistry
- Spectroscopy
- Materials Science
Background:
- Water's unique hydrogen-bond network dictates its properties.
- Understanding water dynamics is crucial across various scientific disciplines.
- Vibrational spectroscopy offers powerful tools to probe molecular interactions.
Purpose of the Study:
- To review recent advancements in static and time-resolved vibrational spectroscopy of water.
- To discuss the structure, dynamics, and energy dissipation within water's hydrogen-bond network.
- To compare various linear and nonlinear spectroscopic techniques for water research.
Main Methods:
- Conventional infrared and Raman spectroscopy.
- Time-resolved techniques: femtosecond pump-probe, photon-echo, optical Kerr effect.
- Nonlinear spectroscopy: sum-frequency generation (SFG), 2D infrared (2DIR) spectroscopy.
- Emerging methods: 2D SFG, 3D infrared, 2D Raman terahertz spectroscopy.
Main Results:
- Detailed insights into the structure and dynamics of water's hydrogen-bond network from ambient to supercooled states.
- Characterization of vibrational energy dissipation mechanisms within the water network.
- Complementary information from diverse spectroscopic methods builds a coherent understanding of water.
- Consistent findings across various states including liquid water, crystalline ice, and amorphous ice.
Conclusions:
- Vibrational spectroscopy, particularly nonlinear techniques, provides a comprehensive understanding of water's complex dynamics and energetics.
- The comparison of different spectroscopic approaches is key to a unified picture of water.
- Future perspectives highlight the continued importance of vibrational spectroscopy in advancing water research.
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