title: Ethyl-enediammonium bis-(5-methyl-3-oxo-2-phenyl-2,3-dihydro-pyrazol-1-ide): a hydrogen-bond-supported supra-molecular ionic assembly.
abstract: The title compound, C(2)H(10)N(2) (2+)·2C(10)H(9)N(2)O(-), is composed of deprotonated 5-methyl-2-phenyl-1H-pyrazol-3(2H)-one anions (PMP(-)) and protonated ethyl-enediamine cations (H(2)en(2+)). The ethyl-enediammonium ion is located on a crystallographic inversion center. The dihedral angle between the phenyl and pyrazole rings is 39.73 (8)°. The two components are connected through N-H⋯O and N-H⋯N hydrogen bonds, forming an infinite three-dimensional network.
authors.forename: Ruibo
authors.initials: R
authors.lastname: Xu
authors.forename: Xingyou
authors.initials: X
authors.lastname: Xu
authors.forename: Daqi
authors.initials: D
authors.lastname: Wang
authors.forename: Xujie
authors.initials: X
authors.lastname: Yang
authors.forename: Xin
authors.initials: X
authors.lastname: Wang