Discovery of two types of new porphyrin–C70 co-crystals: influence of intermolecular contact on the inherent resistance

Two new types of supramolecular aggregate co-crystals containing C70 and M(TPP), Co(TPP)·C70·1.5CS2 (1) and M(TPP)·C70·CS2 [M = Zn (2), 2H (3), TPP = tetraphenylporphyrin], were discovered by adjusting the synthetic parameters, and their inherent resistance measurement was utilized to study the intermolecular contact of these compounds for the first time. The results showed that the resistance was affected by the packing of the components as well the metal center of M(TPP) units, and the method could clearly be beneficial to the discovery of new aggregates with stronger interaction.