title: Homopiperazine-1,4-diium bis-[hexa-aqua-cobalt(II)] tris-ulfate.
abstract: In the title compound, (C(5)H(14)N(2))[Co(H(2)O)(6)](2)(SO(4))(3), the cationic framework is built up of mixed organic-inorganic fragments, namely [Co(H(2)O)(6)](2+) and [C(5)H(14)N(2)](2+). The [Co(H(2)O)(6)](2+) cations form unconnected octa-hedra. Sulfate anions inter-calated between cationic species connect them via N-H⋯O and O-H⋯O hydrogen bonds and electrostatic inter-actions.
authors.forename: Thameur
authors.initials: T
authors.lastname: Sahbani
authors.forename: Wajda
authors.initials: W
authors.lastname: Smirani Sta
authors.forename: Salem
authors.initials: S
authors.lastname: S Al-Deyab
authors.forename: Mohamed
authors.initials: M
authors.lastname: Rzaigui
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677
references.citation: Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 02;66(Pt 11):o2712
references.pmid: 21588925