Inorganic Solid Phases

SrxLa3−xTa0.5Ga5.5O14, x= 0.12 (Sr0.12La2.88Ta0.56Ga5.44O14) Crystal Structure

General Information

  • Phase Label(s): Sr0.12La2.88Ta0.56Ga5.44O14
  • Structure Class(es): langasite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP23
  • Space Group: 150
  • Phase Prototype: La3(Nb0.5Ga0.5)Ga5O14
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Rigaku AFC6 (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; composition dependence studied, least-squares refinement, R = 0.040; wR = 0.044
  • Sample Detail(s): sample prepared from La2O3, Ta2O5, Ga2O3, SrCO3, electron microprobe analysis; La/Sr/Ta/Ga ratio 2.88/0.12/0.56/5.44; trace amounts of unidentified phase, powder (determination of cell parameters), single crystal, 0.091 mm diameter (determination of structural parameters)

Substance Summary

  • Standard Formula: Sr0.12La2.88Ta0.56Ga5.44O14
  • Alphabetic Formula: Ga5.44La2.88O14Sr0.12Ta0.56
  • Published Formula: SrxLa3−xTa0.5Ga5.5O14, x= 0.12
  • Refined Formula: Ga5.44La2.88O14Sr0.12Ta0.56
  • Wyckoff Sequence: 150,g2fed2a
  • Z Formula Units: 1
  • Density: ρ = 6.13 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
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_1611958

  • 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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