ZnPc-pz energetic profile favors the ABCs-axis structure (Table ), and the PXRD patterns suggest either AAstat or AB(C) axis stat stacking mode due to high intensity of 4° peak. The experimental powder pattern shows low crystallinity, though, so we have also sampled the stacking mode mixing as a potential disorder source. The combination of three main stacking modes (Figure SI-17) shows features seen in both hcb LCOFs, i.e. low-intensity of AB diag stat 4° peak and asymmetrical peaks forming in mixed-type crystals. This suggests that the peak asymmetry is in general a distinguishing feature for reading LCOF PXRD data.