Comparison of different density functional theory methods for the calculation of vibrational circular dichroism spectra

Chirality. 2023 Oct;35(10):753-765. doi: 10.1002/chir.23580. Epub 2023 May 25.

Abstract

The determination of the absolute configuration (AC) of an organic molecule is still a challenging task for which the combination of spectroscopic with quantum-mechanical methods has become a promising approach. In this study, we investigated the accuracy of DFT methods (480 overall combinations of 15 functionals, 16 basis sets, and 2 solvation models) to calculate the VCD spectra of six chiral organic molecules in order to benchmark their capability to facilitate the determination of the AC.

Keywords: DFT; VCD; absolute configuration determination; basis set; benchmark; functional; solvation.