Inorganic Solid Phases

(NH4)10−xKx[H2W12O42]·nH2O, x= 6.9, ncaℓ= 9.7 (H2K3.3[NH4]6.7W12O42[H2O]8.5) Crystal Structure

General Information

  • Phase Label(s): H2K3.3[NH4]6.7W12O42[H2O]8.5
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: aP148
  • Space Group: 2
  • Phase Prototype: H2K10W12O42[H2O]7.5
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; STOE 4-circle (determination of structural parameters), X-rays, Mo Kα; λ = 0.071071 nm (determination of cell and structural parameters), T = 295 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement on F; 306 variables; 5652 reflections; I > 2σ(I), wR = 0.06
  • Sample Detail(s): sample prepared from alkaline ammoniacal monotungstate, KOH, atomic absorption spectroscopy, energy-dispersive X-ray analysis, gravimetry, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: H2K6.9[NH4]3.1W12O42[H2O]9.7
  • Alphabetic Formula: H2[H2O]9.7K6.9[NH4]3.1O42W12
  • Published Formula: (NH4)10−xKx[H2W12O42]·nH2O, x= 6.9, ncaℓ= 9.7
  • Refined Formula: H20K8.13O52W12
  • Wyckoff Sequence: 2,i74
  • Z Formula Units: 2
  • Density: ρ = 4.60 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_1630704

  • 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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