porphyrinic Zr-MOF constructed from the newly reported hexagonal prismatic 12-connected
Zr6 cluster through an unusual disordered arrangement, giving rise to the first example of
the shp-a network in MOFs. With its extremely high connectivity, PCN-223 shows high
stability in aqueous solutions with a wide range of pH. Cationic PCN-223 (Fe) formed by
postsynthetic treatment is an excellent recyclable heterogeneous catalyst for the hetero …