title: Double complexes [Co(NH(3))(5)(H(2)O)](2)[Zr(3)F(18)].6H(2)O and [Co(NH(3))(6)](2)[Zr(3)F(18)].6H(2)O.
abstract: The structures of orthorhombic bis[pentaammineaquacobalt(III)] tetra-mu(2)-fluorido-tetradecafluoridotrizirconium(IV) hexahydrate (space group Ibam), [Co(NH(3))(5)(H(2)O)](2)[Zr(3)F(18)].6H(2)O, (I), and bis[hexaamminecobalt(III)] tetra-mu(2)-fluorido-tetradecafluoridotrizirconium(IV) hexahydrate (space group Pnna), [Co(NH(3))(6)](2)[Zr(3)F(18)].6H(2)O, (II), consist of complex [Co(NH(3))(x)(H(2)O)(y)](3+) cations with either m [in (I)] or overline{1} and 2 [in (II)] symmetry, [Zr(3)F(18)](6-) anionic chains located on sites with 222 [in (I)] or 2 [in (II)] symmetry, and water molecules.
authors.affiliation: Novosibirsk State University, Pirogova Street 2, Novosibirsk 90, 630090 Russian Federation.
authors.forename: Alexander I
authors.initials: AI
authors.lastname: Gubanov
authors.forename: Natalia V
authors.initials: NV
authors.lastname: Kuratieva