Topologically identical, but geometrically isomeric layers in hydrous α-, β-Rb[UO2(AsO3OH)(AsO2(OH) 2)]·H2O and anhydrous Rb[UO2(AsO 3OH)(AsO2(OH)2)]

Na Yu, Vladislav V. Klepov, Eric M. Villa, Dirk Bosbach, Evgeny V. Suleimanov, Wulf Depmeier, Thomas E. Albrecht-Schmitt, Evgeny V. Alekseev

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Abstract

The hydrothermal reaction of uranyl nitrate with rubidium nitrate and arsenic (III) oxide results in the formation of polymorphic α- and β-Rb[UO2(AsO3OH)(AsO2(OH) 2)]·H2O (α-, β-RbUAs) and the anhydrous phase Rb[UO2(AsO3OH)(AsO2(OH)2)] (RbUAs). These phases were structurally, chemically and spectroscopically characterized. The structures of all three compounds are based upon topologically identical, but geometrically isomeric layers. The layers are linked with each other by means of the Rb cations and hydrogen bonding. Dehydration experiments demonstrate that water deintercalation from hydrous α- and β-RbUAs yields anhydrous RbUAs via topotactic reactions.

Original languageEnglish (US)
Pages (from-to)152-159
Number of pages8
JournalJournal of Solid State Chemistry
Volume215
DOIs
StatePublished - Jul 2014

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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