Supramolecular Assemblies of Hydrogen‐Bonded Carboxylic Acid Dimers Mediated by Phenyl–Pentafluorophenyl Stacking Interactions

Abstract

Stacks of acids: Pentafluorobenzoic acid forms heterodimers with benzoic acid and 2,4,6-trimethylbenzoic acid that assemble into π stacks with alternating phenyl and pentafluorophenyl residues (see picture). Cocrystals of these acids with 1,4-bisarylbutadiynes contain acid homodimers sandwiched between the diacetylene molecules.