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Updated: Aug 9, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
Quantifying hydrogen bonding in QSAR and molecular modeling
1Department of Computer-Aided Molecular Design, Institute of Physiologically Active Compounds, The Russian Academy of Sciences, Chernogolovka, 142432, Moscow, Russia. raevsky@ipac.ac.ru
Abstract:
Quantitative descriptions of hydrogen bonding for use in QSAR and molecular modeling by means of H-bond descriptors have been analyzed in detail in this paper. Ten new H-bond surface and enthalpy integral descriptors were proposed. The usefulness of these new descriptors, as well as previously developed descriptors was verified using a set of 154 drugs for which data for intestinal absorption in humans were available. The results showed that descriptors such as the number of H-bond acceptor and donor atoms and polar surface area (PSA) did not sufficiently describe the actual H-bonding ability of atoms in molecules. Thus, to enable successful modeling it was necessary to introduce descriptors directly related to the experimental thermodynamics of hydrogen bonding.
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