Unknown

Dataset Information

0

Solvation Free Energies for Aqueous and Nonaqueous Solutions Computed Using PM7 Atomic Charges.


ABSTRACT: We describe a simple and accurate method, ESE-PM7, for calculating solvation free energies ΔGsolv° in aqueous and nonaqueous solutions. The method is based on a noniterative COSMO algorithm. Molecular geometries and atomic charges calculated using the semiempirical method PM7 are used to calculate ΔGsolv°. The method has been tested on 92 different solvents and 988 solutes. The mean absolute errors (MAEs) in ΔGsolv° in aqueous solutions estimated by the ESE-PM7 approach are found to be 1.62 kcal/mol for 389 neutral solutes and 3.06 kcal/mol for 139 ions. The MAEs for neutral molecules in organic solvents are 0.97, 0.74, and 0.51 kcal/mol in polar protic, polar aprotic, and nonpolar solvents, respectively. The developed method can be employed to quickly screen ΔGsolv° values of extended molecular systems including pharmaceutical and biological molecules.

SUBMITTER: Vyboishchikov SF 

PROVIDER: S-EPMC8479861 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC10853938 | biostudies-literature
| S-EPMC9038704 | biostudies-literature
| S-EPMC2856966 | biostudies-literature
| S-EPMC2772112 | biostudies-literature
| S-EPMC8213834 | biostudies-literature
| S-EPMC8480921 | biostudies-literature
| S-EPMC4006301 | biostudies-literature
| S-EPMC5625628 | biostudies-literature
| S-EPMC7145284 | biostudies-literature
| S-EPMC5217485 | biostudies-literature