Inorganic Solid Phases

Mg2−2xCo2xAl4Si5O18, x= 0.5 (MgCoAl4Si5O18 hex) Crystal Structure

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General Information

  • Phase Label(s): MgCoAl4Si5O18 hex
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: hP58
  • Space Group: 192
  • Phase Prototype: Mg2(Al0.44Si0.56)9O18
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Siemens-Bruker D5000 (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement, wRP = 0.088
  • Sample Detail(s): sample prepared from Al[NO3]3[H2O]9, Mg[NO3]2[H2O]6, Co[NO3]2[H2O]6, SiO2, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: MgCoAl4Si5O18
  • Alphabetic Formula: Al4CoMgO18Si5
  • Published Formula: Mg2−2xCo2xAl4Si5O18, x= 0.5
  • Refined Formula: Al4.17Co0.96Mg1.04O18Si4.83
  • Wyckoff Sequence: 192,ml2fc
  • Z Formula Units: 2
  • Density: ρ = 2.65 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
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1230551

  • 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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