ArticleProceedings of the National Academy of Sciences of the United States of America2005
Dynamics of confined water molecules.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 84 citations in OpenAlex.
- Suppressed terahertz dynamics of water confined in nanometer gaps.Science advances · 2024Article
- Tracking water dimers in ambient nanocapsules by vibrational spectroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Enhanced Water Evaporation from Å-Scale Graphene Nanopores.ACS nano · 2022Article
- Molecular heterogeneity in aqueous cosolvent systems.The Journal of chemical physics · 2020Article
- Against all odds-the persistent popularity of homeopathy.Wiener klinische Wochenschrift · 2020Review
- Article
- Water Dynamics in Nafion Fuel Cell Membranes: the Effects of Confinement and Structural Changes on the Hydrogen Bond Network.The journal of physical chemistry. C, Nanomaterials and interfaces · 2007Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We present femtosecond midinfrared pump-probe measurements of the molecular motion and energy-transfer dynamics of a water molecule that is enclosed by acetone molecules. These confined water molecules show hydrogen-bond and orientational dynamics that are much slower than in bulk liquid water. This behavior is surprising because the hydrogen bonds to the C=O groups of the acetone molecules are weaker than the hydrogen bonds in bulk water. The energy transfer between the O-H groups of the confined water molecules has a time constant of 1.3 +/- 0.2 ps, which is >20 times slower than in bulk water. We find that this energy transfer is governed completely by the rate at which hydrogen bonds are broken and reformed, and we identify the short-lived molecular complex that forms the transition state of this process.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.