Inorganic Solid Phases

Cu8(Si4O11)2(OH)4·xH2O, x=0.43 (Cu8Si8O22[OH]4[H2O]0.43) Crystal Structure

General Information

  • Phase Label(s): Cu8Si8O22[OH]4[H2O]0.43
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): plancheite
  • Pearson Symbol: oP172
  • Space Group: 60
  • Phase Prototype: Cu8Si8O22[OH]4[H2O]0.43
  • Measurement Detail(s): Guinier-Hägg film; 53 (determination of cell parameters), Weissenberg photographs (determination of structural parameters), X-rays, Cr Kα1 (determination of cell parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, least-squares refinement; 429 reflections, R = 0.129
  • Sample Detail(s): plancheite sample from Argentina, La Rioja, powder (determination of cell parameters), single crystal (determination of structural parameters)

Substance Summary

  • Standard Formula: Cu8Si8O22[OH]4[H2O]0.43
  • Alphabetic Formula: Cu8[H2O]0.43O22[OH]4Si8
  • Published Formula: Cu8(Si4O11)2(OH)4·xH2O, x=0.43
  • Refined Formula: Cu8H4.86O26.43Si8
  • Wyckoff Sequence: 60,d21c
  • Z Formula Units: 4
  • Density: ρ = 3.82 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]

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_2090215

  • 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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