p-Methyltetrahomodioxacalix[4]arene

The title compound, 7,13,21,27-tetramethyl-3,17-dioxapentacyclo[23.3.1.1(5, 9).1 (11,15).1 (9,23)]ditriaconta-1(29),5,7,9(30),11(31),12,14,19(32),20,22 ,25,27-dodecaene-29,30,31,32-tetraol, C34H36O6, assumes in the solid state a very distorted cone-like conformation stabilized by intramolecular simple and bifurcated hydrogen bonds involving both phenolic and ether O atoms. O ne part of the molecule, comprising an ether link, is included in the cavit y of an adjacent calixarene related by a screw axis, giving rise to a one-d imensional self-inclusion polymer.