Density pair correlation functions for molecular liquids: Approximations for polymers

1998 ◽  
Vol 109 (23) ◽  
pp. 10499-10512 ◽  
Author(s):  
James P. Donley ◽  
J. J. Rajasekaran ◽  
Andrea J. Liu
Keyword(s):  
Correlation Functions ◽  
Pair Correlation ◽  
Molecular Liquids ◽  
Pair Correlation Functions

Thermodynamical, structural, and dielectric properties of molecular liquids from integral equation theories and from simulations

2004 ◽  
Vol 76 (1) ◽  
pp. 63-70 ◽  
Author(s):  
H. Krienke
Keyword(s):  
Integral Equation ◽  
Correlation Functions ◽  
Pair Correlation ◽  
Distribution Functions ◽  
Dielectric Constants ◽  
Solvent Mixtures ◽  
Molecular Liquids ◽  
Pair Correlation Functions ◽  
Molecular Pair ◽  
Theoretical Approaches

A survey is given on our attempts to calculate equilibrium properties of molecular liquids (pure solvents and electrolyte solutions) with the help of spatial pair correlation functions, starting from classical molecular pair interactions. The selection of potential models, especially the influence of molecular polarizability, is discussed as well as the limitations of the different methods of calculation of molecular pair correlation functions (e.g., from molecular and site-site Ornstein-Zernike theories, from MC and from MD simulations). We have performed simulations and integral equation calculations for spatial distribution functions in pure solvents with very low dielectric constants as dioxane and tetrahydrofurane, up to solvents with a very high dielectric constant like n-methylformamide. Ionic solvation is studied in pure solvent systems as well as in solvent mixtures. The general features of ion solvation and association, of the solvent structure around solutes, and their influence on solution properties, are discussed in the framework of the different theoretical approaches.

scholarly journals Distinguishing step relaxation mechanisms via pair correlation functions

2004 ◽  
Vol 70 (23) ◽  
Author(s):  
D. B. Dougherty ◽  
I. Lyubinetsky ◽  
T. L. Einstein ◽  
E. D. Williams
Keyword(s):  
Correlation Functions ◽  
Pair Correlation ◽  
Pair Correlation Functions
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