“…Relatively high contribution of H···F and F···H interactions (9.8%), disclosed for 3, presumably results from the occurrence of disordered anionic fragment (CF 3 OSO 2 − ), in which the oxygen atoms may exchange with the fluorine ones. 1 H and 13 C NMR spectra recorded for compounds 1, 2 and 3 disclose a similar pattern, observed for previously investigated symmetric ACA derivaƟves (Figs S2 †, S3 †). 55 The most deshielded protons, located in the spatial proximity of the nitrogen or oxygen atoms (H1/H8 and H4/H5, respecƟvely (Fig.…”