title: Hexakis[3-(aminocarbonyl)pyridinium] decavanadate(V) dihydrate.
abstract: The structure of the title compound, (C(6)H(7)N(2)O)(6)[V(10)O(28)].2H2O, at 120 (2) K has monoclinic (C2/c) symmetry. The asymmetric unit consists of one half-decavanadate anion of Ci symmetry, three cations and one water molecule. Each water molecule is hydrogen bonded to two decavanadate anions, thus forming a one-dimensional chain of anions. The three-dimensional supramolecular structure is formed by a network of N-H...O, O-H...O and C-H...O hydrogen bonds, in which the cations, anions and water molecules are involved, and by nonparallel-displaced pi-stacking interactions between pyridine rings. As a result of hydrogen bonding, the carboxamide groups of the cations are somewhat twisted from the pyridine ring plane.
authors.affiliation: Department of Inorganic Chemistry, Comenius University, Faculty of Natural Sciences, Mlynská dolina, 842 15 Bratislava, Slovak Republic.
authors.forename: Silvia
authors.initials: S
authors.lastname: Pacigová
authors.forename: Erik
authors.initials: E
authors.lastname: Rakovský
authors.forename: Michal
authors.initials: M
authors.lastname: Sivák
authors.forename: Zdirad
authors.initials: Z
authors.lastname: Zák
mesh_terms: D018360:Crystallography, X-Ray; D008958:Models, Molecular; D008968:Molecular Conformation; D009536:Niacinamide / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry; D011726:Pyridinium Compounds / Q000737:chemistry*; D014638:Vanadates / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D011726:Pyridinium Compounds; D009536:Niacinamide; D014638:Vanadates