3.2: Water Dynamics
- Page ID
- 294281
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Water Dynamics
- Hydrogen bond distances and angles fluctuate with 200 and 60 femtosecond time scales, respectively.
- Hydrogen bonded structures reorganize in a collective manner on picosecond time scales (1–8 ps).
The water HB energy is tough to measure:
- 2-6 kcal mol\(^{-1}\) depending on the method used.
- These are \(\Delta H\) for reorganization, but we do not know how many HB broken or formed in the process.