Inorganic Solid Phases

τ2-Ta(TaxV1−x−ySiy)2, x= 0.009, y= 0.184 (TaV1.5Si0.5 rt) Crystal Structure

General Information

  • Phase Label(s): TaV1.5Si0.5 rt
  • Structure Class(es): Frank-Kasper phase, Friauf-Laves phase
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP12
  • Space Group: 194
  • Phase Prototype: MgZn2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Nonius KAPPA (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicide
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 16 variables; 188 reflections; F > 4σ(F), wR = 0.035
  • Sample Detail(s): sample prepared from Ta, V, Si, electron microprobe analysis; Ta34.4V53.3Si12.3, single crystal (determination of cell parameters), single crystal, 0.030×0.030×0.035 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Ta1.02V1.61Si0.37
  • Alphabetic Formula: Si0.37Ta1.02V1.61
  • Published Formula: τ2-Ta(TaxV1−x−ySiy)2, x= 0.009, y= 0.184
  • Refined Formula: Si0.37Ta1.02V1.61
  • Wyckoff Sequence: 194,hfa
  • Z Formula Units: 4
  • Density: ρ = 10.22 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

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_1934337

  • 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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