Journal
SCIENCE
Volume 354, Issue 6316, Pages 1131-1135Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaf8425
Keywords
-
Categories
Funding
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-FG02-06ER15800, DE-FG02-06ER15066]
- U.S. NSF [CHE-1619660]
- Collaborative Research Center 1109 of the German Research Foundation (Deutsche Forschungsgemeinschaft)
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1619660] Funding Source: National Science Foundation
Ask authors/readers for more resources
The Grotthuss mechanism explains the anomalously high proton mobility in water as a sequence of proton transfers along a hydrogen-bonded (H-bonded) network. However, the vibrational spectroscopic signatures of this process are masked by the diffuse nature of the key bands in bulk water. Here we report how the much simpler vibrational spectra of cold, composition-selected heavy water clusters, D+(D2O)(n), can be exploited to capture clear markers that encode the collective reaction coordinate along the proton-transfer event. By complexing the solvated hydronium Eigen cluster [D3O+(D2O)(3)] with increasingly strong H-bond acceptor molecules (D-2, N-2, CO, and D2O), we are able to track the frequency of every O-D stretch vibration in the complex as the transferring hydron is incrementally pulled from the central hydronium to a neighboring water molecule.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available