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Effects of Salts of the Hofmeister Series on the Hydrogen Bond Network of Water.

ABSTRACT: The effect of salts on water behavior has been a topic of interest for many years; however, some recent reports have suggested that ions do not influence the hydrogen bonding behavior of water. Using an effective two-state hydrogen bonding model to interpret the temperature excursion infrared response of the O-H stretch of aqueous salt solutions, we show a strong correlation between salt effects on water hydrogen bonding and the Hofmeister order. These data clearly show that salts do have a measurable impact on the equilibrium hydrogen bonding behavior of water and support models which explain Hofmeister effects on the basis of solute charge density.

SUBMITTER: Nucci NV

PROVIDER: S-EPMC2748947 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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Effects of Salts of the Hofmeister Series on the Hydrogen Bond Network of Water.

Nucci Nathaniel V NV Vanderkooi Jane M JM

Journal of molecular liquids 20081001 2-3

The effect of salts on water behavior has been a topic of interest for many years; however, some recent reports have suggested that ions do not influence the hydrogen bonding behavior of water. Using an effective two-state hydrogen bonding model to interpret the temperature excursion infrared response of the O-H stretch of aqueous salt solutions, we show a strong correlation between salt effects on water hydrogen bonding and the Hofmeister order. These data clearly show that salts do have a meas ...[more]

PMID: 19847287

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