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. 2021 Jan 19;12:442. doi: 10.1038/s41467-020-20212-1

Fig. 4. Strengthening of electrostatic interactions in paracetamol molecule by proton delocalization.

Fig. 4

A Graphical representation of the paracetamol molecule. B Effective free energy surface generated from classical MD and PIMD at room temperature using the sGDML@DFT(PBE0+MBD) force field. C Interatomic distance distribution dOH generated from classical MD (black) and PIMD (blue).