Vibrational response of hydrogen-bonded interfacial water is dominated by intramolecular coupling
| Authors |
|
|---|---|
| Publication date | 2008 |
| Journal | Physical Review Letters |
| Volume | Issue number | 100 | 17 |
| Pages (from-to) | 173901 |
| Number of pages | 4 |
| Organisations |
|
| Abstract | Using the surface-specific vibrational technique of vibrational sum-frequency generation, we reveal that the double-peaked structure in the vibrational spectrum of hydrogen-bonded interfacial water molecules originates from vibrational coupling between the stretch and bending overtone, rather than from structural effects. This is demonstrated by isotopic dilution experiments, which reveal a smooth transition from two peaks to one peak, as D2O is converted into HDO. Our results show that the water interface is structurally more homogeneous than previously thought. |
| Document type | Article |
| Published at |
https://doi.org/10.1103/PhysRevLett.100.173901
(Final published version)
|
| Permalink to this page | |