Range of ion specific effects in the hydration of ions

Details Range of ion specific effects in the hydration of ions Range of ion specific effects in the hydration of ions

2011-06-02

arxiv.org/abs/1106.0448v1

Physics

Biological Physics

Scientific paper

Within the quasichemical approach, the hydration free energy of an ion is decomposed into a chemical term accounting for ion specific ion-water interactions within the coordination sphere and nonspecific contributions accounting for packing (excluded volume) and long range interactions. The change in the chemical term with a change in the radius of the coordination sphere is the compressive force exerted by the bulk solvent medium on the surface of the coordination sphere. For the Na+, K+, F-, and Cl- ions considered here this compressive force becomes equal for similarly charged ions for coordination radii of about 0.39 nm, not much larger than a water molecule. These results show that ion specific effects are short ranged and arise primarily due to differences in the local ion-water interactions.

Affiliated with

Also associated with

No associations

Rating

Range of ion specific effects in the hydration of ions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Range of ion specific effects in the hydration of ions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Range of ion specific effects in the hydration of ions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-495503