2021 Volume 63 Issue 1 Pages 8-15
Porous materials with high surface areas are widely applied in industry from the viewpoint of separation, purification, and storage. Most reported porous materials are Metal-Organic Frameworks(MOFs), Porous Organic Polymers(POPs), and zeolites, which are macromolecular porous materials. On the other hand, we have been developing porous organic crystals based on pillar[n]arenes that we have developed originary. Since pillar[n]arenes have pores at the molecular level, it is clear which molecule is taken up. In addition to the selective uptake, functional groups can be easily introduced into pillar[n]arenes. With these characteristics, we have developed soft crystals that selectively take up vapors and show color or assembly state changes.