1H-Indole-3-carbaldehyde azine

Abstract

The molecule of the title compound, C18H14N4, lies on a center of inversion such that there is one half-molecule in the asymmetric unit. The N—N single bond adopts a trans configuration and the indole fused-ring system is nearly coplanar with the –CH=N—N=CH– fragment [dihedral angle = 9.8 (2)°]. Adjacent molecules are linked by indole–azine N—H...N hydrogen bonds into a layer motif.