title: 2-Phenyl-1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthrene.
abstract: There are two mol-ecules in the asymmetric unit of the title compound, C(19)H(12)N(4), with dihedral angles of 2.41 (10) and 10.53 (12)° between the fused ring system and the pendant phenyl ring. In the crystal, mol-ecules are linked into chains by N-H⋯N hydrogen bonds and aromatic π-π stacking inter-actions [shortest centroid-centroid distance = 3.6176 (16) Å] complete the structure.
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Liu
authors.forename: Xiu-Ying
authors.initials: XY
authors.lastname: Li
authors.forename: Xiang-Cheng
authors.initials: XC
authors.lastname: Wang
authors.forename: Chun-Xiang
authors.initials: CX
authors.lastname: Li
authors.forename: Chun-Bo
authors.initials: CB
authors.lastname: Liu