Inorganic Solid Phases

La4YSi4; La5−xYxSi4, x= 1.0 (La2.5Y2.5Si4) Crystal Structure

General Information

  • Phase Label(s): La2.5Y2.5Si4
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: tP36
  • Space Group: 92
  • Phase Prototype: Zr5Si4
  • Measurement Detail(s): automatic diffractometer; 8184 (determination of cell parameters), automatic diffractometer; Bruker AXS SMART APEX (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 298 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicide
  • Interpretation Detail(s): complete structure determined; composition dependence studied, full-matrix least-squares refinement; 44 variables; 966 reflections; I > 2σ(I), R = 0.04; wR = 0.0662
  • Sample Detail(s): sample prepared from La, Y, Si, single crystal (determination of cell parameters), single crystal, 0.034×0.041×0.051 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: La4YSi4
  • Alphabetic Formula: La4Si4Y
  • Published Formula: La4YSi4; La5−xYxSi4, x= 1.0
  • Refined Formula: La3.98Si4Y1.02
  • Wyckoff Sequence: 92,b4a
  • Z Formula Units: 4
  • Density: ρ = 5.27 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_1632547

  • 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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