Crystals of the Kemp's triacid salts - Part VI: Supramolecular architecture in the crystal of Kemp's triacid with tris(2-aminoethyl)amine

► The crystals composed of triply deprotonated Kemp's triacid and triply protonated tris(2-aminoethyl)amine is studied. ► The uncommon twisted boat conformation of the anion is present. ► The trianion forms with four trication a 3D-dimensional hydrogen-bonded network.