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The title mol­ecule, C 24 H 14 N 4 O 2 , lies on an inversion centre and the asymmetric unit containg one half-mol­ecule. The naphthalene ring systems are twisted slightly with respect to the oxadiazole rings, making a dihedral angle of 1.36 (6)°. These mol­ecules are π-stacked along the crystallographic  a  axis, with an inter­planar distance of 3.337 (1) Å. Adjacent mol­ecules are slipped from the ‘ideal’ cofacial π-stack in both the long and short mol­ecular axis (the long mol­ecular axis is defined as the line through the naphthalene C atom in the 6-position and the mol­ecular center, the short mol­ecular axis is in the mol­ecular plane perpendicular to it). The slip distance along the long mol­ecular axis ( S1 ) is 7.064 (1) Å, nearly a two-ring-length displacement. The side slip ( S2 , along the short mol­ecular axis) is 1.159 (8) Å.

5,5′-Bis(naphthalen-2-yl)-2,2′-bi(1,3,4-oxadiazole)