Solid-state self-assembly of a complex from 1,3,5-benzenetricarboxylic acid and 1,3,5-trihydroxybenzene: influence of strong O-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds

1,3,5-Benzenetricarboxylic acid (trimesic acid, TMA) was cocrystallized wit h 0.5 equiv. of 1,3,5-trihydroxybenzene (phloroglucinol, THB) to generate a close-packed non-interpenetrating planar mosaic motif. Both O-H . . .O and C-H . . .O hydrogen bonds were observed in the crystal lattice. Each THB m olecule is hydrogen bonded to six adjacent TMA molecules to form a planar r osette-shaped structure, which constitutes the repeating units of a layer-t ype lattice.