Inorganic Solid Phases

Na2O·MgO·5Al2O3 (Na2MgAl10O17 rhom2) Crystal Structure

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General Information

  • Phase Label(s): Na2MgAl10O17 rhom2
  • Structure Class(es): β"-alumina
  • Classification by Properties: superionic conductor
  • Mineral Name(s): –
  • Pearson Symbol: hR90
  • Space Group: 166
  • Phase Prototype: K2Al10.67O17
  • Measurement Detail(s): Weissenberg photographs (determination of cell and structural parameters), X-rays, Cu Kα1; λ = 0.15405 nm (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined, block-diagonal least-squares refinement, R = 0.083
  • Sample Detail(s): sample prepared from Na2CO3, MgO, Al2O3, single crystal (determination of cell parameters), single crystal, 0.03×0.07×1.00 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Na2MgAl10O17
  • Alphabetic Formula: Al10MgNa2O17
  • Published Formula: Na2O·MgO·5Al2O3
  • Refined Formula: Al11Na2O17
  • Wyckoff Sequence: 166,h3c5ba
  • Z Formula Units: 3
  • Density: ρ = 3.30 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

Anisotropic

Site
β11 [nm2]
β22 [nm2]
β33 [nm2]
2β12 [nm2]
2β13 [nm2]
2β23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1921004

  • 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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