Abstract: | In benzene‐1,2,3‐tricarbonitrile, C9H3N3, the packing of the two independent molecules is three‐dimensional and complex, involving inter alia bifurcated (C—H)2...N systems from neighbouring CH groups. In 2.2]paracyclophane‐4,5,12,13‐tetracarbonitrile, C20H12N4, the 2.2]paracyclophane systems display the usual distortions, namely lengthened C—C bonds and widened sp3 angles in the bridges, narrow angles in the six‐membered rings at the bridgehead atoms, and flattened boat conformations of the rings. The molecules are linked by a series of C—H...N interactions to form layers parallel to the ab plane. |