Inorganic Solid Phases

Eu0.27Ba7.22Al13Si29 (Ba3EuAl4Si18, T = 90 K) Crystal Structure

General Information

  • Phase Label(s): Ba3EuAl4Si18
  • Structure Class(es): clathrate
  • Classification by Properties: ferromagnet FM, metal
  • Mineral Name(s):
  • Pearson Symbol: cP54
  • Space Group: 223
  • Phase Prototype: Na4Si23
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS SMART (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters), T = 90 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicide
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 18 variables; 291 reflections, R = 0.0155; wR = 0.0356
  • Sample Detail(s): sample prepared from Ba, Si, Al, Eu, electron microprobe analysis; composition determined as Ba7.22(2)Eu0.27(2)Al13.3(1)Si29.21(2), single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Ba3.61Eu0.14Al6.5Si14.5
  • Alphabetic Formula: Al6.5Ba3.61Eu0.14Si14.5
  • Published Formula: Eu0.27Ba7.22Al13Si29
  • Refined Formula: Al6.45Ba3.63Eu0.09Si14.48
  • Wyckoff Sequence: 223,kidca
  • Z Formula Units: 2
  • Density: ρ = 3.04 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]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1420140

  • 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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