Figure . The saddle-shaped molecule tetrakis(tert-butyl)cyclo-dipyridyldicarbazole (CCDC: EJICEG). The 'saddle' shape here is a critical factor in how these molecules assemble into oligomers for nHx4dpdc; a single term can be used in place of multiple bond torsion factors to compare saddle character. Calculation of a comparative model is not needed to run SCSD, and this can simplify the process of comparing several chemical motifs. As such, other molecular units with a saddle character can be parameterized in this same way, with the understanding that the saddle-induced stacking supramolecular arguments made in Rickhaus' paper can be extended to identify other molecules with an appropriate shape.