title: catena-Poly[[[aqua-copper(II)]-bis-[μ-bis-(3,5-dimethyl-1H-pyrazol-4-yl) selenide-κN:N]] dichloride monohydrate].
abstract: In the title compound, {[Cu(C(10)H(14)N(4)Se)(2)(H(2)O)]Cl(2)·H(2)O}(n), the Cu(II) ion, lying on a twofold rotation axis, has a square-pyramidal geometry constituted by four N atoms of pyrazolyl groups in the basal plane and an apical O atom of a water mol-ecule. A pair of bis-(3,5-dimethyl-1H-pyrazol-4-yl) selenide ligands bridge the Cu centers into a polymeric double-chain extending along [001]. The chloride anions are involved in inter-molecular N-H⋯Cl and O-H⋯Cl hydrogen bonds, which link the chains into a three-dimensional network.
authors.affiliation: Department of Chemistry, National Taras Shevchenko University, Volodymyrska Street 64, 01601 Kyiv, Ukraine.
authors.forename: Maksym
authors.initials: M
authors.lastname: Seredyuk
authors.forename: Yurii S
authors.initials: YS
authors.lastname: Moroz
authors.forename: Kateryna O
authors.initials: KO
authors.lastname: Znovjyak
authors.forename: Vadim A
authors.initials: VA
authors.lastname: Pavlenko
authors.forename: Igor O
authors.initials: IO
authors.lastname: Fritsky