Journal of Physical Chemistry B, Vol.122, No.29, 7403-7408, 2018
Phonon Spectrometric Evaluation of the Solute-Solvent Interface in Solutions of Glycine and Its N-Methylated Derivatives
From the perspective of O:H-O bond cooperativity, we analyzed the solute capability of transiting the O:H-O bond from the mode of ordinary water to the hydration state and its consequence on the solution viscosity and surface stress. Phonon spectrometric results suggest that glycine and its N-methyl derivatives strongly affect the surrounding solvent molecules through H <--> H repulsion and dipolar polarization. The H <--> H interproton repulsion disrupts the surface stress, and the polarization enhances the solution viscosity.