3-(Prop-2-yn-1-yl­oxy)phthalo­nitrile

In the title compound, C₁₁H₆N₂O {systematic name: 3-(prop-2-yn-1-yl­oxy)benzene-1,2-dicarbo­nitrile}, the 14 non-H atoms are approximately coplanar (r.m.s. deviation = 0.051 Å) with the terminal ethyne group being syn with the adjacent cyano residue. In the crystal, centrosymmetric dimers are connected by pairs of C—H...N inter­actions and these are linked into a supra­molecular tape parallel to (1-30) via C—H...N inter­actions involving the same N atom as acceptor.