Obtaining single crystals containing cationic porphyrins from aqueous solutions: a systematic approach including nano-crystallization, organic modifiers and gel crystallization

Abstract

Obtaining high-quality single crystals containing charged molecules from aqueous solutions can sometimes be challenging. In this publication, we studied the crystallization of polycationic porphyrins. Crystals of three polycationic porphyrins, [5,10,15,20-tetrakis(1-methylpyridin-1-ium-4-yl)porphyrin, 5-(4-cyanophenyl)-10,15,20-tris(1-methylpyridin-1-ium-4-yl)porphyrin and 5-(4-carboxyphenyl)-10,15,20-tris(1-methylpyridin-1-ium-4-yl)porphyrin], were obtained with different anions. We started initially with `nano-crystallization' scree Show more