Electron Tunneling through Water

Benjamin I, Evans D, Nitzan A. Electron tunneling through water layers Effect of layer structure and thickness. J. Chem. Phys. 52. 1997 106 6647-6654. 

The first model of electron tunneling through water layers was proposed by W. Schmickler and D. Henderson 1990. "... 

Analysis of the radial pair distribution function for the electron centroid and solvent center-of-mass computed at different densities reveals some very interesting features. At high densities, the essentially localized electron is surrounded by the solvent resembling the solvation of a classical anion such as Cr or Br. At low densities, however, the electron is sufficiently extended (delocalized) such that its wavefunction tunnels through several neighboring water or ammonia molecules (Figure 16-9). 

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