Inorganic Solid Phases

Cs[(UO2)(HSeO3)(SeO3)] + Np(VI), 12(±3)% substitution of Np(VI) for U(VI) (HCs[UO2]0.88[NpO2]0.12[SeO3]2, T = 100(2) K) Crystal Structure

General Information

  • Phase Label(s): HCs[UO2]0.88[NpO2]0.12[SeO3]2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mP96
  • Space Group: 14
  • Phase Prototype: HCs[UO2][SeO3]2
  • Measurement Detail(s): automatic diffractometer; 2062 (determination of cell parameters), automatic diffractometer; Bruker AXS APEX II (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 100(2) K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): trioxoselenate(IV)
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 109 variables; 2016 reflections; I > 2σ(I), R = 0.0322; wR = 0.0830
  • Sample Detail(s): sample prepared from UO3, SeO2, CsCl, NpO2[OH], HIO3, energy-dispersive X-ray analysis; 2.54 wt.% Np, 30.06 wt.% U, 16.71 wt.% Cs, 23.77 wt.% Se, 26.92 wt.% O, single crystal (determination of cell parameters), single crystal, 0.20×0.40×0.75 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: HCs[UO2]0.88[NpO2]0.12[SeO3]2
  • Alphabetic Formula: CsH[NpO2]0.12[SeO3]2[UO2]0.88
  • Published Formula: Cs[(UO2)(HSeO3)(SeO3)] + Np(VI), 12(±3)% substitution of Np(VI) for U(VI)
  • Refined Formula: CsHO8Se2U
  • Wyckoff Sequence: 14,e12
  • Z Formula Units: 4
  • Density: ρ = 4.86 Mg·m−3

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

Displacement Parameters

Isotropic

Site
Published
U [nm2]
Type
Computed
Beq [nm2]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1935691

  • 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)

  • Cite this content

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