A new family of bridge functions for electrolyte solutions

We present a new set of closures for restricted models of electrolyte solutions at the McMillan-Mayer level that improve upon the Hypernetted Chain prediction for the ion-ion pair correlation functions. The improvement is accomplished by proposing simple functional forms for the bridge functions...

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Bibliographic Details
Date:2001
Main Authors: Raineri, F.O., Stell, G.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2001
Series:Condensed Matter Physics
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/120520
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:A new family of bridge functions for electrolyte solutions / F.O. Raineri, G. Stell // Condensed Matter Physics. — 2001. — Т. 4, № 4(28). — С. 621-642. — Бібліогр.: 16 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We present a new set of closures for restricted models of electrolyte solutions at the McMillan-Mayer level that improve upon the Hypernetted Chain prediction for the ion-ion pair correlation functions. The improvement is accomplished by proposing simple functional forms for the bridge functions and the specification of certain adjusting parameters according to several criteria. Under the new closures, and unlike the HNC case, the “sum” direct correlation function, which is crucial for determining the stability of the solution with respect to phase separation, remains finite at thermodynamic states along the spinodal and at the critical point.