Towards understanding π-stacking interactions between non-aromatic rings

Molčanov, K.; Kojić-Prodić, B.

doi:10.1107/S2052252519000186

Figure 4
The electrostatic potential in a pair of contiguous face-to-face stacked hydrogen chloranilate anions in the crystal packing of KHCA·2H₂O (Molčanov et al., 2009b

) mapped onto an isosurface of 0.35 e Å⁻³, showing the interactions between the electron-rich (red and orange) and electron-poor (blue, green) regions (red: −0.35, blue: 0.35 e Å⁻¹). Figure reproduced with permission from Molčanov et al. (2015