Porphyrin-cucurbituril organic molecular porous material: Structure and iodine adsorption properties

A host–guest complex has been formed between cationic tetrakis(4-pyridyl)porphyrin species of (H6TPyP)4 + ⋅ 4Cl− and TMeQ[6] depending on hydrogen bonding interaction. Single crystal X-ray diffraction analysis clearly reveals the supramolecular nature of this novel TMeQ[6]-(H6TPyP)4 + ⋅ 4Cl− host–guest compound, representing the first example of structurally characterized cucurbit[n]uril-porphyrin host–guest complexes. Due to the three dimensional porous framework, the iodine adsorption behavior of this cucurbit[n]uril-porphyrin supramolecular structure has also been studied.