Specific Ion Effects on Water Structure and Dynamics beyond the First Hydration Shell

Visible effects of ions on the hydrogen-bond structure of water (see picture; blue: ion, red/gray: first/second hydration shell) can be observed by new spectroscopic methods. These experiments along with molecular dynamics simulations provide important information about the translational and rotational motion of water molecules in salt solution. The observed ion-specific long-range pattern of the hydrogen-bond network sheds new light on the Hofmeister effect.