2-[4-(Carbazol-9-yl)phen-yl]-1,3-diethyl-1,3-di-phenyl-guanidine.

In the title compound, C35H32N4, the C-N bond lengths in the guanidine part are 1.286†(3), 1.387†(2) and 1.414†(2)†à , indicating double- and single-bond character. The N-C-N angles are 114.48†(17), 118.78†(17) and 126.72†(17)°, showing a deviation of the CN3 plane from an ideal trigonal-planar geometry. The carbazole ring system is almost planar (r.m.s. deviation = 0.002†à ). In the crystal, mol-ecules are connected by weak C-H⋯N hydrogen bonds, generating a zigzag chain along the ac plane. Weak π-π inter-actions [centroid-centroid distance = 3.785†(1)†à ] between two phenyl rings of the guanidine moiety are also present.