When a hydronium ion collides with one end of a hydrogen-bonded chain of water molecules, a different hydronium ion can be released at the other end. Only a slight movement of six protons and a rearrangement of covalent and hydrogen bonds is needed.
It need not elbow its way through a crowd as other ions must. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric. Find more information on the Altmetric Attention Score and how the score is calculated.
The mechanism of charge transport in aqueous media is critical in molecular, materials, and life sciences. The structure of the solvated hydroxide ion has been an area of some controversy. Polarization-resolved ultrafast time domain polarizability relaxation is used here to resolve the terahertz frequency Raman spectrum of hydroxide solutions.
The frequency of the symmetric stretch increases with concentration, consistent with an effect of ionic strength on either the H-bond or the structure of the cluster.
Detailed experimental methodology and DFT calculations. Such files may be downloaded by article for research use if there is a public use license linked to the relevant article, that license may permit other uses.
Electron spectroscopy reveals that hydroxide ions can donate a hydrogen bond to water. Winter showed that, unlike a proton, the hydrogen atom of the hydroxide ion can form a weak hydrogen donor bond to a nearby water molecule.
Hydroxide ions are known to accept up to four hydrogen bonds from neighbouring water molecules through the oxygen of the hydroxide - but finding evidence that they can also donate a hydrogen bond has been more difficult. To settle the argument, the team used an electron spectroscopy technique that is sensitive enough to distinguish between hydrogen bonds that are donated and accepted.
The technique works by probing the local electronic structure of molecules in hydroxide aqueous solutions - detecting energy transfers that occur in extremely short time frames of around 6 femtoseconds. One chemistry professor received four month prison sentence for producing the drug in a university lab, while another was acquitted. Blomgren, J. Ionin and N. Busing and D. Hornig, J. Pimentel and A.
Download references. You can also search for this author in PubMed Google Scholar. Lomonosov Moscow State University. Translated from Zhurnal Strukturnoi Khimii, Vol. Reprints and Permissions. Zatsepina, G. State of the hydroxide ion in water and aqueous solutions.
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