Abstract
A KNOWLEDGE of proton-transfer dynamics and hydrogen-bonding in water and aqueous solutions is necessary for the understanding of many important chemical and biological processes. For example, quantum effects related to proton transfer (or tunnelling) in H+(H2O)n clusters of liquid water (where n = 1,2,· · ·) are known to have a dominant role in the proton conductance mechanism1,2 and are responsible for the high conductances of H+ and OH– in water. A new quantum theoretical approach to this process has been presented3, which is based on the hypothesis that there are quantum correlations4–8 between each H+ and the protons of the surrounding water molecules, leading to the formation of coherent dissipative structures3,8. From further investigations, one of us predicted that an anomalous decrease of H+ conductance in H2O–D2O mixtures would take place9. Having thought of an experiment to test these predictions9 we now report the experimental results and conclude that an anomalous decrease in proton conductance does indeed occur.
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Weingärtner, H., Chatzidimttriou-Dreismann, C. Anomalous H+ and D+ conductance in H2O–D2O mixtures. Nature 346, 548–550 (1990). https://doi.org/10.1038/346548a0
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DOI: https://doi.org/10.1038/346548a0
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