New Study Unveils How Water Dynamics Slows Down at Low Temperatures. (IMAGE)
Caption
Jump motions are the only slow variable at relatively high temperatures, for example, from ambient to ~250 K. At lower temperatures, however, the displacement of the fourth-nearest oxygen atom of the jumping molecule becomes the slow variable competing with the jump motion. The displacement of this molecule occurs in an environment of molecular fluctuations outside the first hydration shell and significantly affects the jump dynamics.
Credit
Shinji Saito
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License
CC BY