Disodium zinc bis­(sulfate) tetra­hydrate (zinc astrakanite) revisited

We present a new low-temperature refinement of disodium zinc bis­(sulfate) tetra­hydrate {systematic name: poly[tetra-μ-aqua-di-μ-sulfato-zinc(II)disodium(I)]}, [Na(2)Zn(SO(4))(2)(H(2)O)(4)](n) or Zn astrakanite, which is an upgrade of previously reported data [Bukin & Nozik (1974 ▶). Zh. Strukt...

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Detalles Bibliográficos
Autores principales: Díaz de Vivar, M. Enriqueta, Baggio, Sergio, Ibáñez, Andrés, Baggio, Ricardo
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Inorganic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2961512/
https://www.ncbi.nlm.nih.gov/pubmed/21202433
http://dx.doi.org/10.1107/S1600536808009719
Descripción
Sumario:We present a new low-temperature refinement of disodium zinc bis­(sulfate) tetra­hydrate {systematic name: poly[tetra-μ-aqua-di-μ-sulfato-zinc(II)disodium(I)]}, [Na(2)Zn(SO(4))(2)(H(2)O)(4)](n) or Zn astrakanite, which is an upgrade of previously reported data [Bukin & Nozik (1974 ▶). Zh. Strukt. Khim. 15, 712–716]. The compound is part of an isostructural family containing the Mg (the original astrakanite mineral), Co and Ni species. The very regular ZnO(aqua)(4)O(sulfate)(2) octa­hedra lie on centres of symmetry, while the rather distorted NaO(aqua)(2)O(sulfate)(4) octa­hedra appear at general positions, linked into a three-dimensional network by the bridging water mol­ecules and the fully coordinated sulfate groups.

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