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Identifying the 'signatures' of protons in water

O+ core, the excess charge can become more localized onto two or even one of the H atoms, causing substantial, size-dependent shifts in the spectral signature of the excess proton. This extreme response to breaking symmetry is consistent with Zundel's model of the excess proton being a highly polarizable species.

"The basic point is that the proton is a moving target, rapidly switching its character from one species to the next according to how many water molecules it is associated with," said Johnson. "Now that the spectral signatures of various local environments in water are known, the big question left is how this all comes together as we continue to grow crystals toward bulk water (ice)."


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Contact: Janet Rettig Emanuel
janet.emanuel@yale.edu
203-432-2157
Yale University
14-Jul-2005


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