Inorganic Solid Phases

Sr8AlxGa16−xSi30, x= 10; type-VIII silicon clathrate (Sr4Al5Ga3Si15) Crystal Structure

General Information

  • Phase Label(s): Sr4Al5Ga3Si15
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: cI54
  • Space Group: 217
  • Phase Prototype: Ba4(Ga0.36Sn0.64)22Sn
  • Measurement Detail(s): automatic diffractometer (determination of cell and structural parameters), X-rays (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicide
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, multiphase, wRP = 0.0841
  • Sample Detail(s): sample prepared from Sr, Al, Ga, Si, amounts of Sr4Al3Ga5Si15 (11 wt.%), SrGa4, SrAl2Si2 and Si, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Sr4Al5Ga3Si15
  • Alphabetic Formula: Al5Ga3Si15Sr4
  • Published Formula: Sr8AlxGa16−xSi30, x= 10; type-VIII silicon clathrate
  • Refined Formula: Al4.95Ga3.19Si14.86Sr4
  • Wyckoff Sequence: 217,gdc2a
  • Z Formula Units: 2
  • Density: ρ = 3.25 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_1929362

  • 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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