Abstract
Sets of configurations selected from three molecular dynamics simulations for liquid water have been analyzed for the distribution of hydrogen-bond clusters. Two simulations correspond to water at 1 g cm−3, while the third corresponds to highly compressed water at 1.346 g cm−3. An energy criterion was adopted for existence of a hydrogen-bond between two molecules. As the cutoff value for bonding increases (becomes more permissive), a bond percolation threshold is encountered at which initially disconnected clusters suddenly produce a large space-filling random network. At least for the model studied, any chemically reasonable definition of ’’hydrogen-bond’’ leads to this globally connected structure though a few disconnected fragments inhabit its interior. Although some polygonal closures can exist, the critical percolation threshold is apparently well predicted by Flory’s theory of the gel point for dendritic polymerization.
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Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 27, 2003, 5:52 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 3:01 p.m.) |
Indexed | 2 months ago (June 26, 2025, 12:48 a.m.) |
Issued | 46 years, 4 months ago (May 1, 1979) |
Published | 46 years, 4 months ago (May 1, 1979) |
Published Print | 46 years, 4 months ago (May 1, 1979) |
@article{Geiger_1979, title={Aspects of the percolation process for hydrogen-bond networks in water}, volume={70}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.438042}, DOI={10.1063/1.438042}, number={9}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Geiger, A. and Stillinger, F. H. and Rahman, A.}, year={1979}, month=may, pages={4185–4193} }