title: trans-Diacetonitrile-tetra-kis(1H-pyrazole-κN)nickel(II) dinitrate.
abstract: In the title complex, [Ni(CH(3)CN)(2)(C(3)H(4)N(2))(4)](NO(3))(2), the cation lies on an inversion center and adopts an octa-hedral coordination geometry about the Ni atom. The two acetonitrile ligands are in a trans conformation. N-H⋯O hydrogen bonds between cations and anions link the complex mol-ecules into one-dimensional chains running parallel to [100].
authors.forename: Chien-Hong
authors.initials: CH
authors.lastname: Chen
authors.forename: Chang-Chih
authors.initials: CC
authors.lastname: Hsieh
authors.forename: Hon Man
authors.initials: HM
authors.lastname: Lee
authors.forename: Yih-Chern
authors.initials: YC
authors.lastname: Horng