The activity in about 650, 710, 790, 870, and 900 cm -1 Raman shifts can be due to collective Raman-active vibrations of lithium-sulfur structures and the DIB groups (see Fig. in Supplementary Information for partial spectra). These vibrations are observed in all lithiated samples of DIB-S 4 -DIB and DIB-S 8 -DIB. This also holds for the activities seen around 1100 cm -1 (see Fig. , panel (IV) and the Supplementary Information).