Ion Solvation via Neutron Scattering

摘要

The recognition that the hydration of ions has a major role in defining the structure and dynamics of aqueous solutions has a long but somewhat checkered history. In their extensive review of ionic hydration, Hinton and Amis cited 685 references (the first as early 1900) but in the end concluded that 'the field is in a state of confusion'. Even the answer to such an apparently simple question like 'what is the hydration number of Na~+?' remained uncertain with estimates ranging from 1 to 80!