5,11,17,23-Tetra-tert-butyl-26,28-dihydroxy-25,27-bis[2-(p-nitrobenzylideneamino)ethoxy]calix[4]arene

The title compound, C₆₂H₇₂N₄O₈, has a cone conformation. The planes of the individual phenyl rings are inclined at 97.49 (7), 142.24 (10), 92.78 (7) and 143.14 (11)° to the plane of the methylene C atoms linking these aromatic rings. There are intramolecular hydrogen bonds between the proximal hydroxy and ether functional groups with O...O non-bonded contacts of 2.862 (3) and 2.892 (3) Å, respectively. The cones are linked to one another along the a axis by two weak intermolecular C—H...O hydrogen bonds [C...O contacts of 3.303 (7) and 3.377 (7) Å] to form an infinite polymeric chain.

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