Related Experiment Video
Updated: Jun 20, 2025

High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water
Published on: April 28, 2022
Real-space local self-motion of protonated and deuterated water
Yuya Shinohara1, Takuya Iwashita2, Masahiro Nakanishi3
1Materials Science and Technology Division, <a href="https://ror.org/01qz5mb56">Oak Ridge National Laboratory</a>, Oak Ridge, Tennessee 37831, USA.
Abstract:
We report on the self-part of the Van Hove correlation function, the correlation function describing the dynamics of a single molecule, of water and deuterated water. The correlation function is determined by transforming inelastic scattering spectra of neutrons or x rays over a wide range of momentum transfer Q and energy transfer E to space R and time t. The short-range diffusivity is estimated from the Van Hove correlation function in the framework of the Gaussian approximation. The diffusivity has been found to be different from the long-range macroscopic diffusivity, providing information about local atomic dynamics.
Related Concept Videos
¹H NMR of Labile Protons: Deuterium (²H) Substitution
¹H NMR of Labile Protons: Temporal Resolution
The –OH proton in alcohols typically appears in the range of δ 2 to 5 ppm but can vary depending on the specific...
Proton (¹H) NMR: Chemical Shift
Absorption signals of all the protium nuclei...
¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons
¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons
In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...
Water: A Bronsted-Lowry Acid and Base

