Table . The summary of the space groups of SubPc derivatives. ①-⑧ correspond to the molecular arrangements discussed in Figure . The SubPc molecules stack straight in all the crystals of this study, minimizing the influence of local molecular arrangements. They are highly suitable for comparing the symmetry of arrangements, including polarity and chirality. MeOH molecules are arranged to form 1D channels in (P)SubPc-3Cl(β), (P)SubPc-3Br(β), and (P)SubPc-3I(β) crystals. A chiral, polar, and porous structure promising various applications, such as optical separation and asymmetric synthesis, can be obtained by removing MeOH without disturbing the assembly pattern of SubPc molecules. However, in our preliminary trials, the assembly pattern of SubPc is drastically altered when MeOH is removed by heating the crystals under a vacuum. On the other hand, multistep solvent exchange techniques might remove solvent molecules from porous assemblies without losing their original structures. Thus, careful handling may achieve a chiral, polar, and porous structure even in our system.