title: Piperazine-1,4-diium bis-[tetra-chlorido-aurate(III)] dihydrate.
abstract: In the title compound, (C(4)H(12)N(2))[AuCl(4)](2)·2H(2)O, the Au(III) atom has a square-planar geometry. The piperazinium dication lies on an inversion centre and adopts a typical chair conformation. In the crystal, a combination of N-H⋯O, N-H⋯Cl and O-H⋯Cl hydrogen bonds results in the formation of a three-dimensional network.
authors.affiliation: Institute of Chemistry FEB RAS, 159 Prospekt Stoletiya, Vladivostok 690022, Russian Federation.
authors.forename: Anna V
authors.initials: AV
authors.lastname: Polishchuk
authors.forename: Emilia T
authors.initials: ET
authors.lastname: Karaseva
authors.forename: Mikhail A
authors.initials: MA
authors.lastname: Pushilin