4-(Prop-2-yn-1-yl-oxy)benzene-1,2-dicarbonitrile.

In the title compound, C(11)H(6)N(2)O, the complete mol-ecule is generated by the application of crystallographic twofold symmetry (the mol-ecule is disordered about this axis). The prop-2-yn-1-yl residue is slightly twisted out of the plane of the benzene ring [C-O-C-C torsion angle = 173.1 (3)°] and is orientated away from the nitrile substituents. In the crystal, supra-molecular chains along the a axis, arising from C-H⋯N inter-actions, are connected into stacks along the c axis by π-π inter-actions between the benzene rings [centroid-centroid distance = 3.6978 (6) Š= length of the c axis].