2009-05-01
Structure dynamics of the proton in liquid water probed with terahertz time-domain spectroscopy
Publication
Publication
Phys. Rev. Lett. , Volume 102 - Issue Article number: 198303 p. 1- 4
We study the hydration of protons in liquid water using terahertz time-domain spectroscopy and polarization-resolved femtosecond midinfrared pump-probe spectroscopy. We observe that the addition of protons leads to a very strong decrease of the dielectric response of liquid water that corresponds to 19±2 water molecules per dissolved proton. This depolarization results from water molecules (∼4) that are irrotationally bound to the proton and from the motion of water (corresponding to the response of ∼15 water molecules) involved in the transfer of the proton charge.
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| doi.org/10.1103/physrevlett.102.198303 | |
| Phys. Rev. Lett. | |
| Organisation | Ultrafast Spectroscopy |
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Tielrooij, K. J., Timmer, R., Bakker, H., & Bonn, M. (2009). Structure dynamics of the proton in liquid water probed with terahertz time-domain spectroscopy. Phys.Rev.Lett., 102(Article number: 198303), 1–4. doi:10.1103/physrevlett.102.198303 |
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