Inorganic Solid Phases

CsK2.25[GeW9Nb3O40Eu1.25(H2O)12]·8H2O (CsK2.25Eu1.25Nb3W9[GeO4]O36[H2O]20) Crystal Structure

General Information

  • Phase Label(s): CsK2.25Eu1.25Nb3W9[GeO4]O36[H2O]20
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oP336
  • Space Group: 62
  • Phase Prototype: CsK2.25Eu1.25Nb3W9[GeO4]O36[H2O]20
  • Measurement Detail(s): automatic diffractometer (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 = 296(2) K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthogermanate, oxide, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement on F2; 408 variables; 2721 reflections; I > 2σ(I), R = 0.0586; wR = 0.1361
  • Sample Detail(s): sample prepared from EuCl3[H2O]6, Cs6.5K0.5(GeW9[NbO2]3O37)[H2O]6, chemical analysis; 2.51 wt.% K, 2.34 wt.% Ge, 8.75 wt.% Nb, 3.83 wt.% Cs, 4.24 wt.% Eu, 50.87 wt.% W, single crystal (determination of cell parameters), single crystal, 0.04×0.24×0.24 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: CsK2.25Eu1.25Nb3W9[GeO4]O36[H2O]20
  • Alphabetic Formula: CsEu1.25[GeO4][H2O]20K2.25Nb3O36W9
  • Published Formula: CsK2.25[GeW9Nb3O40Eu1.25(H2O)12]·8H2O
  • Refined Formula: CsEu1.26GeH18.12K2.25Nb2.97O49.06W9.03
  • Wyckoff Sequence: 62,d33c17b
  • Z Formula Units: 4
  • Density: ρ = 3.65 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_1129701

  • 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

    Citation copied