Tetra­naphthyl­eno[5,6-bcd:11,12-b'c'd':17,18-b''c''d'':23,24-b'''c'''d''']tetra­furan

The title compound, C₄₀H₁₆O₄ or [C₁₀H₄O]₄, is a planar tetra­meric cyclo­oligomer which crystallizes in the monoclinic space group P2₁/n. The compound is located on an inversion center with the asymmetric unit consisting of half of the mol­ecule. The compound displays an inter­esting packing structure, where the cyclo­oligomer displays both layered packing with respect to nearest neighbors and a rotation of adjacent planar rings that results in additional interactions. The geometric parameters of the compound agree well with those of comparable cyclo­oligomers, while the packing reveals some similarities and differences.