Structure and Dynamics of [PF$_6$][P$_{1,2,2,4}$] from Molecular Dynamics Simulations

Marcelo A. Carignano

doi:10.1021/jp407648b

paper

Structure and Dynamics of [PF $_{6}$ ][P $_{1, 2, 2, 4}$ ] from Molecular Dynamics Simulations

arXiv:1311.6121 · doi:10.1021/jp407648b

Abstract

Diethyl(methyl)(isobutyl)phosphonium hexafluorophosphate, [PF $_{6}$ ][P $_{1, 2, 2, 4}$ ], is an organic ionic plastic crystal with potential uses as a solid electrolyte in storage and light harvesting devices. In this work we present a molecular dynamics simulation study for this material covering an extended temperature range, from 175 K to 500 K. The simulations predicts a transition from the crystalline to a {\em semi} plastic phase at 197 K, the onset of cation jump-like rotations at 280 K, a third transition at 340 K to a {\em full} plastic phase and melting to 450 K. Overall, the simulations show a good agreement with the experimental findings providing a wealth of detail in the structural and dynamic properties of the system.

Structure and Dynamics of [PF6​][P1,2,2,4​] from Molecular Dynamics Simulations

Abstract

References in corpus (3)

Structure and Dynamics of [PF $_{6}$ ][P $_{1, 2, 2, 4}$ ] from Molecular Dynamics Simulations