Structure dynamics of the proton in liquid water probed with terahertz time-domain spectroscopy
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| Publication date | 2009 |
| Journal | Physical Review Letters |
| Volume | Issue number | 102 | 19 |
| Pages (from-to) | 198303 |
| Number of pages | 4 |
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| Abstract | 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. |
| Document type | Article |
| Note | geen UvA affiliatie!! |
| Published at |
https://doi.org/10.1103/PhysRevLett.102.198303
(Final published version)
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