Inorganic Solid Phases

La10−xMgxGe5.5Al0.5O26.75−x/2, x= 0.2 (Mg0.5La4.5Al0.25[GeO4]2.75O2.125) Crystal Structure

General Information

  • Phase Label(s): Mg0.5La4.5Al0.25[GeO4]2.75O2.125
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP66
  • Space Group: 176
  • Phase Prototype: (Mg0.1La0.9)5(Al0.04Ge0.96)6O13.125
  • Measurement Detail(s): automatic diffractometer (determination of cell and structural parameters), X-rays, Cu Kα; λ = 0.15406 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthogermanate, oxide
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement
  • Sample Detail(s): sample prepared from La2O3, MgO, GeO2 (α-quartz), Al2O3, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg0.1La4.9Al0.25[GeO4]2.75O2.325
  • Alphabetic Formula: Al0.25[GeO4]2.75La4.9Mg0.1O2.325
  • Published Formula: La10−xMgxGe5.5Al0.5O26.75−x/2, x= 0.2
  • Refined Formula: Al0.25Ge2.75La4.90Mg0.10O13.32
  • Wyckoff Sequence: 176,i3h4fa
  • Z Formula Units: 2
  • Density: ρ = 6.08 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1124416

  • 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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