2-(2,3,4,9-Tetrahydro-1H-carbazol-1-ylidene)propanedinitrile

Abstract

In the title molecule, C15H11N3, the dihedral angle between the benzene ring and the fused pyrrole ring is 1.07 (5)°. The cyclohexene ring adopts an envelope conformation: the dicyanomethylene group at position 1 has a coplanar orientation. An intramolecular N—H...N hydrogen bond generates an S(7) ring motif. Intermolecular N—H...N hydrogen bonds form an R22(14) ring in the crystal. A C—H...π interaction involving the benzene ring is also found in the structure.