Spectral Signatures of Hydrated Proton Vibrations in Water Clusters

@article{Headrick2005SpectralSO,
  title={Spectral Signatures of Hydrated Proton Vibrations in Water Clusters},
  author={Jeffrey M. Headrick and Eric G. Diken and Richard S Walters and Nathan I. Hammer and Richard A Christie and Jun Cui and Evgeniy M. Myshakin and Michael A Duncan and Mark A. Johnson and Kenneth D. Jordan},
  journal={Science},
  year={2005},
  volume={308},
  pages={1765 - 1769}
}
The ease with which the pH of water is measured obscures the fact that there is presently no clear molecular description for the hydrated proton. The mid-infrared spectrum of bulk aqueous acid, for example, is too diffuse to establish the roles of the putative Eigen (H3O+) and Zundel (H5O2+) ion cores. To expose the local environment of the excess charge, we report how the vibrational spectrum of protonated water clusters evolves in the size range from 2 to 11 water molecules. Signature bands… Expand
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