title: 5H-Imidazo[4,5-f][1,10]phenanthroline.
abstract: The title mol-ecule, C(13)H(8)N(4), is is essentially planar [r.m.s. deviation for all non-H atoms = 0.025 (3) Å]. In the crystal, mol-ecules are connected through one weak bifurcated N-H⋯(N,N) hydrogen bond and three π-π stacking inter-actions between pyridine and imidazole rings [centroid-centroid distance = 3.631 (8) Å] and between pyridine and benzene rings [centroid-centroid distances = 3.675 (5) and 3.666 (2) Å].
authors.forename: Shao-Wei
authors.initials: SW
authors.lastname: Tong
authors.forename: Wen-Dong
authors.initials: WD
authors.lastname: Song
authors.forename: Dong-Liang
authors.initials: DL
authors.lastname: Miao
authors.forename: Jing-Bo
authors.initials: JB
authors.lastname: An