title: 1H-Imidazo[4,5-f][1,10]phenanthrolin-7-ium perchlorate monohydrate.
abstract: In the title crystal structure, C(13)H(9)N(4) (+)·ClO(4) (-)·H(2)O, cations, anions and water mol-ecules are linked through inter-molecular N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, forming layers parallel to (001). In addition, there are weak π-π stacking inter-actions between the layers, involving the cations and with centroid-centroid distances in the range 3.584 (2)-3.662 (2) Å, forming a three-dimensional network.
authors.affiliation: Department of Applied Engineering, Zhejiang Economic and Trade Polytechnic, 310018 Hangzhou, People's Republic of China.
authors.forename: Su-Mei
authors.initials: SM
authors.lastname: Shen