From porphyrin sponges to porphyrin sieves: a unique crystalline lattice of aquazinc tetra(4-carboxyphenyl)porphyrin with nanosized channels

Abstract

A unique supramolecular solid assembly with very wide channels has been formulated with aquazinc tetra(4-carboxyphenyl)porphyrin building blocks; the open porphyrin lattice is sustained by characteristic stacking interactions and multiple hydrogen bonding, it comprises only about 39% of the crystal volume, and preserves its crystallinity up to about 360 K.