title: Electronic properties of a cytosine decavanadate: toward a better understanding of chemical and biological properties of decavanadates.
abstract: We have synthesized and crystallized a cytosine-decavanadate compound, Na(3) [V(10)O(28)] (C(4)N(3)OH(5))(3)(C(4)N(3)OH(6))(3).10H(2)O, and its crystal structure has been determined from a single-crystal X-ray diffraction. A high resolution X-ray diffraction experiment at 210 K (in P1 space group phase) was carried out. The data were refined using a pseudo-atom multipole model to get the electron density and the electrostatic properties of the decavanadate-cytosine complex. Static deformation density maps and Atoms in Molecules (AIM) topological analysis were used for this purpose. To get insight into the reactivity of the decavanadate anion, we have determined the atomic net charges and the molecular electrostatic potential. Special attention was paid to the hydrogen bonding occurring in the solid state between the decavanadate anion and its environment. The comparison of the experimental electronic characteristics of the decavanadate anions to those found in literature reveals that this anion is a rigid entity conserving its intrinsic properties. This is of particular importance for the future investigations of the biological activities of the decavanadate anion.
authors.affiliation: Laboratoire Structures, Propriétés et Modélisation des Solides (SPMS), UMR CNRS 8580, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Châtenay-Malabry, France.
authors.forename: Nada
authors.initials: N
authors.lastname: Bosnjaković-Pavlović
authors.forename: Anne
authors.initials: A
authors.lastname: Spasojević-de Biré
authors.forename: Isabel
authors.initials: I
authors.lastname: Tomaz
authors.forename: Nouzha
authors.initials: N
authors.lastname: Bouhmaida
authors.forename: Fernando
authors.initials: F
authors.lastname: Avecilla
authors.forename: Ubavka B
authors.initials: UB
authors.lastname: Mioc
authors.forename: João Costa
authors.initials: JC
authors.lastname: Pessoa
authors.forename: Nour Eddine
authors.initials: NE
authors.lastname: Ghermani
mesh_terms: D018360:Crystallography, X-Ray; D003596:Cytosine / Q000138:chemical synthesis / Q000737:chemistry*; D004583:Electrons; D006860:Hydrogen Bonding; D008958:Models, Molecular; D055672:Static Electricity; D014638:Vanadates / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D014638:Vanadates; D003596:Cytosine