In most cases, molecular interactions are primarily governed by electrostatic and vdW forces. When the electrostatic component is negligible, such as in interactions between nearly nonpolar molecules, the previously mentioned ESP analysis becomes less useful, whereas visualizing the vdW potential can be highly effective in explaining and predicting interactions. The definition of vdW potential and the concept of its visual analysis were introduced in our previous work, along with numerous application examples. In Ref. , we found that bicyclic oligoparaphenylenes (OPP) can stably adsorb cyclo [18]carbon, a molecule with extremely weak effective polarity. The strong adsorption effect was intuitively explained through the vdW potential distribution of OPP. Fig. presents the isosurface of the vdW potential of OPP at a specific negative value (-1.2 kcal•mol⁻¹), calculated using the carbon element as the probe.