Inorganic Solid Phases

Nd4(Al1.5Ge0.5O7.250.75)O2 (Nd4Al1.5Ge0.5O9.25) Crystal Structure

General Information

  • Phase Label(s): Nd4Al1.5Ge0.5O9.25
  • Structure Class(es):
  • Classification by Properties: ionic conductor, nonmetal
  • Mineral Name(s):
  • Pearson Symbol: mP64
  • Space Group: 14
  • Phase Prototype: La4(Ti0.5Ga0.5)2O9.5
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Switzerland, Villigen, Paul Scherrer Institute, Laboratory for Neutron Scattering, SINQ (determination of structural parameters), X-rays, Cu Kα1, Cu Kα2 (determination of cell parameters), neutrons; λ = 0.188551(6) nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement, wRP = 0.0359
  • Sample Detail(s): sample prepared from Nd2O3, HNO3, EDTA, GeO2 (α-quartz), Al[NO3]3[H2O]9, amounts of NdAlO3 (1.6(1) wt.%), powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Nd4Al1.5Ge0.5O9.25
  • Alphabetic Formula: Al1.5Ge0.5Nd4O9.25
  • Published Formula: Nd4(Al1.5Ge0.5O7.250.75)O2
  • Refined Formula: Al1.45Ge0.55Nd4O9.33
  • Wyckoff Sequence: 14,e16
  • Z Formula Units: 4
  • Density: ρ = 5.92 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]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1620558

  • 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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