Constant-height I(V) spectra acquired on a species of 5 assigned as 5 para , along with the corresponding dI/dV(V) spectra. Open feedback parameters: V = −2 V, I = 0.15 pA (negative bias side) and V = 2.2 V, I = 0.15 pA (positive bias side). The acquisition position of the spectra is shown in Supplementary Fig. 7.
