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Radiochemistry

, Volume 52, Issue 1, pp 7–11 | Cite as

Partially ordered organic-inorganic nanocomposites in the system UO2SeO4-H2O-NH3(CH2)9NH3

  • S. V. Krivovichev
  • V. V. Gurzhiy
  • P. C. Burns
  • I. G. Tananaev
  • B. F. Myasoedov
Article

Abstract

The compound [NH3(CH2)9NH3]2[(UO2)3(SeO4)5(H2O)2](H2O)x (1) was prepared by isothermal evaporation from aqueous uranyl selenate solutions containing 1,9-diaminononane. A structural study showed that the compound is a partially ordered organic-inorganic nanocomposite. The structural model of the inorganic complex was determined by single crystal X-ray diffraction a = 19.5572(5), c = 47.878(2) Å, V= 15859.1(9) Å3, Z= 12; R1 = 0.1318, wR2 = 0.3186 for 2808 reflections with |Fo| ≥ 4σF). The structure consists of double hydrogen-bonded [(UO2)3(SeO4)5(H2O)2]2- layers parallel to the (001) plane. The disordered protonated 1,9-diaminononane molecules and water molecules are arranged between the layers. The inorganic layered complex [(UO2)3(SeO4)5(H2O)2]2- belongs to a new type that was not observed previously in the structures of inorganic and organometallic compounds.

uranyl selenates organic-inorganic composites single crystal X-ray diffraction 

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • S. V. Krivovichev
    • 1
    • 2
  • V. V. Gurzhiy
    • 1
  • P. C. Burns
    • 3
  • I. G. Tananaev
    • 4
  • B. F. Myasoedov
    • 4
  1. 1.Geological FacultySt. Petersburg State UniversitySt. PetersburgRussia
  2. 2.Institute of Silicate ChemistryRussian Academy of SciencesSt. PetersburgRussia
  3. 3.University of Notre DameNotre Damethe United States
  4. 4.Frumkin Institute of Physical Chemistry and ElectrochemistryRussian Academy of SciencesMoscowRussia

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