STRUCTURES OF 1,1-DIPHENYL-2-AZA-1,3-BUTADIENES .3. 4-(4-CYANOPHENYL)-1,1-DIPHENYL-2-AZA-1,3-BUTADIENE

The title structure, 4CNPD henyl)-2-(di-phenylmethyleneamino)propenoni trile], consists of discrete Z diastereomeric molecules packed by van der Waals forces. The azabutadiene fragment, C1=N1-C2=C3, is twisted a round die central single bond at 130.1 (7)-degrees. The non-substitute d phenyl rings are tilted with respect to the N1=C1(C1a)-C1b plane at 26.6 (2) and 55.8 (3)-degrees. The dihedral angle between these rings is 73.7 (2)-degrees. The cyano-substituted phenyl ring is almost copla nar with the N1-C2(C4)=C3-C1c plane. The phenyl rings are not plane-to -plane coupled. There are no intermolecular contacts between non-H ato ms shorter than 3.3 angstrom.