Inorganic Solid Phases

Sr2Gd8Si6O26:2 mol.% Sm (SrSm0.08Gd3.92[SiO4]3O) Crystal Structure

General Information

  • Phase Label(s): SrSm0.08Gd3.92[SiO4]3O
  • Structure Class(es): apatite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP42
  • Space Group: 176
  • Phase Prototype: La4.67[SiO4]3O
  • Measurement Detail(s): automatic diffractometer; MAC Science MXP18-HF (determination of structural parameters), X-rays, Cu Kα; λ = 0.15406 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate, oxide
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, RP = 0.0331; wRP = 0.0435
  • Sample Detail(s): sample prepared from Sr[NO3]2, Gd[NO3]3[H2O]6, Sm[NO3]3[H2O]6, Si(OC2H5)4, citric acid (C6H8O7[H2O]), powder (determination of structural parameters)

Substance Summary

  • Standard Formula: SrSm0.08Gd3.92[SiO4]3O
  • Alphabetic Formula: Gd3.92O[SiO4]3Sm0.08Sr
  • Published Formula: Sr2Gd8Si6O26:2 mol.% Sm
  • Refined Formula: Gd2.61O12.78Si3Sr2.39
  • Wyckoff Sequence: 176,ih4fa
  • Z Formula Units: 2
  • Density: ρ = 6.19 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_1532634

  • 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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