5.7.1 Introduction

This section describes five different procedures for obtaining a better description of dispersion (van der Waals) interactions in DFT calculations: non-local correlation functionals (Section 5.7.2), empirical atom–atom dispersion potentials (“DFT-D”, Section 5.7.3), the Becke-Johnson exchange-dipole model (XDM, Section 5.7.4), the Tkatchenko-Scheffler van der Waals method (TS-vdW, Section 5.7.5), and finally the many-body dispersion method (MBD, Section 5.7.6). For a pedagogical introduction to all of these methods, discussing the commonalities between them, see Ref.  463 Gray M., Herbert J. M.
Annu. Rep. Comput. Chem.
(2024), 20, pp. 1. Link .