Figure 17.

The figure presents a topology analysis for electron density on the title compound, optimized at the WB97XD/6-311G(d,p) level of theory using the Multifunctional Wavefunction Analyser (Multiwfn). The molecular structures illustrated include labels for rings and pseudorings, with the phenyl rings represented by (A) and (C), and the six-membered ring of diphenylnicotinonitrile designated as (B). Orange spheres represent critical points for H-bonds, while yellow spheres correspond to those for rings. Bond paths are denoted by brown lines, and the indices of Critical Points (CPs) are labeled with blue numbers. These detailed renderings were generated using MULTIWFN.