Since a direct measurement through FTIR was inconclusive, additional experiment have been conducted to assess if the surface ligands are exclusively OAm. As such, a ligand exchange has been performed on the NMLs synthesized by ODT as the coordinating agent to verify if the mean distance between NMLs changes. As described in further detail under Methods, octylamine has been used for this exchange. Figure illustrates the PXRD diffractograms of 1T'-WS2 NMLs before and after ligand exchange. The shift in the low angle oscillations supports that the interplanar distance has decreased. Calculating the distance of NMLs after ligand exchange shows that the spacing has decreased from 2.7 nm to 2.07 nm. This variation is induced by the shorter size of octylamine (8 carbons in the chain) compared to OAm (with 18 carbons and an unsaturation). These results further support that there is no ODT on the surface of NMLs, as the ligand exchange induced a change in the interplanar distance.