Electron-Driven Acid-Base Chemistry: Proton Transfer from Hydrogen Chloride to Ammonia

@article{Eustis2008ElectronDrivenAC,
  title={Electron-Driven Acid-Base Chemistry: Proton Transfer from Hydrogen Chloride to Ammonia},
  author={Soren N. Eustis and D. Radisic and Kit H. Bowen and Rafał A. Bachorz and Maciej Haranczyk and Gregory K. Schenter and Maciej Gutowski},
  journal={Science},
  year={2008},
  volume={319},
  pages={936 - 939}
}
In contrast to widely familiar acid-base behavior in solution, single molecules of NH3 and HCl do not react to form the ionic salt, NH+4Cl–, in isolation. We applied anion photoelectron spectroscopy and ab initio theory to investigate the interaction of an excess electron with the hydrogen-bonded complex NH3···HCl. Our results show that an excess electron induces this complex to form the ionic salt. We propose a mechanism that proceeds through a dipole-bound state to form the negative ion of… 

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