Journal ArticleDOI
Ions in water: characterizing the forces that control chemical processes and biological structure.
TLDR
Two different techniques indicate that the interaction of water with anions is by an approximately linear hydrogen bond, suggesting that the dominant forces on ions in water are short range forces of a chemical nature.About:
This article is published in Biophysical Chemistry.The article was published on 2007-07-01. It has received 571 citations till now. The article focuses on the topics: Debye & Molecule.read more
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Anion Fractionation and Reactivity at Air/Water:Methanol Interfaces. Implications for the Origin of Hofmeister Effects
TL;DR: New experimental results on a set of anions that include the large PF 6 (-) and the highly polarizable IO 3 (-) species are reported, showing that f X (-) is almost independent of x w, and O 3(g) oxidizes I (-) at virtually identical rates on H 2O and MeOH.
Journal ArticleDOI
Ion-specific effects on the kinetics of mineral dissolution
Encarnación Ruiz-Agudo,Maja Urosevic,Christine V. Putnis,Carlos Rodriguez-Navarro,Carolina Cardell,Andrew Putnis +5 more
TL;DR: In this article, the effect of background electrolytes on mineral growth and dissolution was investigated by measuring dissolution rates using in-situ Atomic Force Microscopy, and the results showed that the tendency for electrolytes to form ion pairs in solution reduces such an effect, thus leading to an inverse correlation between dissolution rates and background ion separation.
Journal ArticleDOI
Thermodynamically dominant hydration structures of aqueous ions.
Safir Merchant,Dilip Asthagiri +1 more
TL;DR: Each stepwise increment in the coordination number more fully accounts for the chemical contribution, and this molecular aufbau approach is used to interrogate the thermodynamic importance of various hydration structures X[H(2)O](n) of X(aq) within a classical molecular mechanics framework.
Journal ArticleDOI
Cation-Anion Interactions within the Nucleic Acid Ion Atmosphere Revealed by Ion Counting.
Magdalena Gebala,George M. Giambaşu,Jan Lipfert,Namita Bisaria,Steve Bonilla,Guangchao Li,Darrin M. York,Daniel Herschlag +7 more
TL;DR: The properties of anion exclusion are systematically explored, testing the zeroth-order model that anions of different identity are equally excluded due to electrostatic repulsion and reveal hitherto unknown properties of the ion atmosphere and suggest possible roles of oriented ion pairs or anion-bridged cations in the ions atmosphere for electrolyte solutions of salts with reduced activity.
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Osmolyte effects: impact on the aqueous solution around charged and neutral spheres.
TL;DR: The findings indicate that several factors like the charge of the spheres as well as the characteristics of the osmolytes significantly influence the thermodynamic and dynamic properties of the local water shell and the solvation process with regard to varying enthalpic and entropic contributions.
References
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Zur Lehre von der Wirkung der Salze
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Energy transfer: a spectroscopic ruler.
TL;DR: Electronic excitation energy transfer as function of distance measured, noting energy transfer process use as spectroscopic ruler as well as the use of spectroscopy ruler for measuring distance.
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The Hofmeister effect and the behaviour of water at interfaces.
TL;DR: The first general, detailed qualitative molecular mechanism for the origins of ion-specific (Hofmeister) effects on the surface potential difference at an air-water interface is proposed; this mechanism suggests a simple model for the behaviour of water at all interfaces, regardless of whether the non-aqueous component is neutral or charged, polar or non-polar.
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Specific ion effects at the air/water interface.
TL;DR: Aqueous ion-containing interfaces are ubiquitous and play a key role in a plethora of physical, chemical, atmospheric, and biological processes, from which just a few illustrative examples are mentioned.
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Zur Lehre von der Wirkung der Salze: Sechste Mittheilung. Die Betheiligung gelöster Stoffe an Quellungsvorgängen
TL;DR: In this paper, the Versuehsanordnung of the Quellungsversuehen in Wasseraufnahme is discussed, i.e., the Aufgabe batten, den zeitlichen Verlauf der Wasserausfreenahme seitens quellender Ktirper bei Einbringen derselben in reines Wasser klarzustellen, so sollten die naehstehend vorzuftihrenden Untersuehangen dartiber A
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