Inorganic Solid Phases

Na(UO2)O(OH) (Na[UO2]O[OH]) Crystal Structure

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General Information

  • Phase Label(s): Na[UO2]O[OH]
  • Structure Class(es): fluorite family
  • Classification by Properties: –
  • Mineral Name(s): clarkeite
  • Pearson Symbol: hR18
  • Space Group: 166
  • Phase Prototype: CaUO4
  • Measurement Detail(s): automatic diffractometer (determination of cell and structural parameters), X-rays (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, oxide
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement, RP = 0.1399; wRP = 0.1827; RB = 0.0950
  • Sample Detail(s): clarkeite sample from U.S.A. North Carolina, Mitchell and Yancey Counties, Spruce Pine district, electron microprobe analysis; 83.14 wt.% UO3, 7.01 wt.% Na2O, 0.42 wt.% K2O, 0.37 wt.% CaO, 3.96 wt.% PbO, 0.29 wt.% SrO, 0.49 wt.% ThO2, 0.82 wt.% Y2O3, 0.03 wt.% SiO2, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na[UO2]O[OH]
  • Alphabetic Formula: NaO[OH][UO2]
  • Published Formula: Na(UO2)O(OH)
  • Refined Formula: NaO4U
  • Wyckoff Sequence: 166,c2ba
  • Z Formula Units: 3
  • Density: ρ = 6.79 Mg·m−3
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Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1213263

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

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