Water Triggers Hydrogen Bond Network Reshaping in the Glycoaldehyde Dimer.

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ID: 99809
2020
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Ranked #171 of 192 articles by views in angewandte chemie (international ed in english)

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Abstract
Carbohydrates are ubiquitous biomolecules in nature. The vast majority of their biomolecular activity takes place in aqueous environments. Molecular reactivity and functionality are, therefore, often strongly influenced by not only interactions with equivalent counterparts, but also with the surrounding water molecules. Glycoaldehyde (Gly) represents a prototypical system to identify the relevant interactions and the balance that governs them. Here we present a broadband rotational spectroscopy study on the stepwise hydration of the Gly dimer with up to three water molecules. We reveal the preferred hydrogen bond networks formed when water molecules are sequentially picked-up by the sugar dimer. We observe that the dimer structure and the hydrogen bond networks at play remarkably change upon the addition of just a single water molecule to the dimer. Further addition of water molecules does not significantly alter the observed hydrogen bond topologies.
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prez2020waterangewandte Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Cristóbal Pérez, Amanda Steber, Berhane Temelso, Zbigniew Kisiel, Melanie Schnell
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Journal angewandte chemie (international ed in english)
Year 2020
DOI
10.1002/anie.201914888
URL
Keywords
rotational spectroscopy. hydrogen bonding. self-aggregation. hydration of sugars

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