Dispersion-corrected global double hybrids give the best description of excimer binding with greatly improved r e (ranging from 0.05 to 0.07 Å) and the smallest devions in D e despite their tendency to overbind the excimer systems: their MADs for D e range from 1.48 kcal/mol [B2GP-PLYP-D3(BJ)] to 3.77 kcal/mol [B2GP-PLYP-D4]. Overestimation of exciplex binding from dispersion-corrected double hybrids was also noted in the study by Krueger and Blanquart where B2PLYP-D3(BJ) significantly overbound the exciplexes analysed which the authors acknowledged was largely due to the inclusion of a dispersion correction. Their tendency to overestimate D e suggests that excited-state parametrised dispersion corrections would be necessary for a reliable description by TD-DFT methods.