Inorganic Solid Phases

Nb2O3(SO4)2·0.25H2O (Nb8[SO4]8O12[H2O]) Crystal Structure

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General Information

  • Phase Label(s): Nb8[SO4]8O12[H2O]
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: hR183
  • Space Group: 148
  • Phase Prototype: Nb8[SO4]8O12[H2O]
  • Measurement Detail(s): Guinier film; 84 (determination of cell parameters), automatic diffractometer; Rigaku AFC7 (determination of structural parameters), X-rays, Cu Kα1; λ = 0.154056 nm (determination of cell parameters), X-rays, Mo Kα; λ = 0.071070 nm (determination of structural parameters), T = 295 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): sulfate, oxide, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, 93 variables; 1261 reflections; I > 2σ(I), R = 0.031; wR = 0.072
  • Sample Detail(s): sample prepared from Nb2O5, H2SO4, energy-dispersive X-ray analysis; Nb/S ratio analyzed, powder (determination of cell parameters), single crystal, 0.06×0.06×0.06 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Nb8[SO4]8O12[H2O]
  • Alphabetic Formula: [H2O]Nb8O12[SO4]8
  • Published Formula: Nb2O3(SO4)2·0.25H2O
  • Refined Formula: H2Nb8O45S8
  • Wyckoff Sequence: 148,f9c3a
  • Z Formula Units: 3
  • Density: ρ = 3.46 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

Displacement Parameters

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_1320480

  • 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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