Figure 2

The electrostatic potential surface (ESP) generated at B97-D/6 − 31 + G* level of theory. Red and blue colors signify the regions with charge accumulation and depletion, respectively. Counterpoise corrected binding energies (E bind ) in kcal/mol, C-C bond lengths (d C1-C2 ) and binding distances (b bind ) in Å, for the studied GNP-maleic anhydride (MA) system.