Title
Heteroaromatic π-Stacking Energy Landscapes.
Abstract
In this study we investigate pi-stacking interactions of a variety of aromatic heterocycles with benzene using dispersion corrected density functional theory. We calculate extensive potential energy surfaces for parallel-displaced interaction geometries. We find that dispersion contributes significantly to the interaction energy and is complemented by a varying degree of electrostatic interactions. We identify geometric preferences and minimum interaction energies for a set of 13 5- and 6-membered aromatic heterocycles frequently encountered in small drug-like molecules. We demonstrate that the electrostatic properties of these systems are a key determinant for their orientational preferences. The results of this study can be applied in lead optimization for the improvement of stacking interactions, as it provides detailed energy landscapes for a wide range of coplanar heteroaromatic geometries. These energy landscapes can serve as a guide for ring replacement in structure-based drug design.
Year
DOI
Venue
2014
10.1021/ci500183u
JOURNAL OF CHEMICAL INFORMATION AND MODELING
Keywords
Field
DocType
drug design,static electricity,thermodynamics,quantum theory
Electrostatics,Dispersion (optics),Chemical physics,Molecule,Combinatorial chemistry,Computational chemistry,Chemistry,Potential energy,Interaction energy,Density functional theory,Static electricity,Stacking
Journal
Volume
Issue
ISSN
54
5
1549-9596
Citations 
PageRank 
References 
3
0.52
2
Authors
7