Study of Hydrogen Bond and Dipolar Interaction in Water-like Fluid with Toy Model

ORAL

Abstract

Hydrogen bond and dipolar interaction, which originated from the high polarizability of asymmetric water-like molecules, give rise to anomalous properties. Anionic interface of water-like fluid is understandable as a result of hydrogen bond and excluded interactions of OH$^{-}$ and H$_{3}$O$^{+}$. Range of dipolar interaction reaches over several water-like molecule size. And, the interaction between dipole and ion affects on about 20 times longer than the size of water-like molecule. Therefore, the interaction between charged particles within this range shows different behavior compared to interaction in a uniform dielectric medium. Toy model gives physical insights and helps comprehensions to complex phenomena. In this study we give the numerical simulation to investigate these phenomena.

Authors

  • Y.S. Jho

    KAIST/UCSB

  • C.S. Chang

    KAIST/NYU

  • P.A. Pincus

    UCSB/KAIST

  • M.W. Kim

    KAIST/UCSB