English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Using molecular dynamics simulations and methods of importance sampling, westudy the thermodynamics and dynamics of sodium chloride in the aqueouspremelting layer formed spontaneously at the interface between ice and itsvapor. We uncover a hierarchy of timescales that characterize the relaxationdynamics of this system, spanning the picoseconds of ionic motion to the10s-100s of nanoseconds associated with fluctuations of the liquid-crystalinterface in their presence. We find that ions distort both local interfaces,incurring restoring forces that result in the ions preferentially residing inthe middle of the layer. While ion pair dissociation is thermodynamicallyfavorable, these structural and dynamic effects cause its rate to vary by overan order of magnitude through the layer, with a maximum rate significantlydepressed from the corresponding bulk value. The solvation environment of ionsin the premelting layer is distinct from that in a bulk liquid, being dominatedby slow reorganization of water molecules and a water structure intermediatebetween ice and its melt.

Ion Pair Dissociation Dynamics in an Aqueous Premelting Layer