Performance of 3D-RISM-KH in Predicting Hydration Free Energy: Effect of Solute Parameters

Performance of 3D-RISM-KH in Predicting Hydration Free Energy: Effect of Solute Parameters

The three-dimensional reference interaction site model molecular solvation theory with the Kovalenko–Hirata closure relation has been shown to produce excellent solvation characteristics for a large class of (bio)­chemical systems in solution. Correct calculation of hydration free energy is central...

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Veröffentlicht in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2019-05, Vol.123 (18), p.4087-4093
Hauptverfasser: Roy, Dipankar, Kovalenko, Andriy
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container_title The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory
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creator Roy, Dipankar
Kovalenko, Andriy
description The three-dimensional reference interaction site model molecular solvation theory with the Kovalenko–Hirata closure relation has been shown to produce excellent solvation characteristics for a large class of (bio)­chemical systems in solution. Correct calculation of hydration free energy is central to successful application of any solvation model. In order to find out the best possible force-field parameters to be used for hydration free energy calculation with the aforementioned theory, we have developed an extended database containing a large number of experimental solvation free energies available in the current literature and used a plethora of theoretical models for assessment. The general Amber force field was found to perform satisfactorily, whereas special care should be taken in solute charge assignment with the universal force field.
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title Performance of 3D-RISM-KH in Predicting Hydration Free Energy: Effect of Solute Parameters
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