Inorganic Solid Phases

K2Na6[(α-Si(FeOH2)2FeW9(OH)3O34)2]·27H2O (K2Na6W18Fe6[SiO4]2O60[OH]6[H2O]31, T = 100 K) Crystal Structure

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General Information

  • Phase Label(s): K2Na6W18Fe6[SiO4]2O60[OH]6[H2O]31
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: mS584
  • Space Group: 15
  • Phase Prototype: K2Na6W18Fe6[SiO4]2O60[OH]6[H2O]31
  • Measurement Detail(s): automatic diffractometer; 7394 (determination of cell parameters), automatic diffractometer; Bruker AXS SMART APEX (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 100 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, orthosilicate, oxide, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 709 variables; 12739 reflections; I > 2σ(I), R = 0.0457; wR = 0.1104
  • Sample Detail(s): sample prepared from Fe[NO3]3[H2O]9, K10[SiW9O34][H2O]34, NaCl, chemical analysis; 6.44 wt.% Fe, 1.51 wt.% K, 2.60 wt.% Na, 2.9 wt.% H2O, 1.04 wt.% Si, 62.2 wt.% W, single crystal (determination of cell parameters), single crystal, 0.07×0.15×0.28 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K2Na6W18Fe6[SiO4]2O60[OH]6[H2O]31
  • Alphabetic Formula: Fe6[H2O]31K2Na6O60[OH]6[SiO4]2W18
  • Published Formula: K2Na6[(α-Si(FeOH2)2FeW9(OH)3O34)2]·27H2O
  • Refined Formula: Fe6H54.80K2Na6O101.40Si2W18
  • Wyckoff Sequence: 15,f73
  • Z Formula Units: 4
  • Density: ρ = 3.98 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

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_1626204

  • 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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