Inorganic Solid Phases

K2TaF7 Crystal Structure

General Information

  • Phase Label(s): K2TaF7 mon
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mP40
  • Space Group: 14
  • Phase Prototype: K2NbF7
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Enraf-Nonius CAD4 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): fluoride
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 1548 reflections; I > 3σ(I), R = 0.020; wR = 0.022
  • Sample Detail(s): 200 ppm oxygen detected; other phases: 200 ppm O, single crystal (determination of cell parameters), single crystal, 0.167×0.250×0.333 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K2TaF7
  • Alphabetic Formula: F7K2Ta
  • Published Formula: K2TaF7
  • Refined Formula: F7K2Ta
  • Wyckoff Sequence: 14,e10
  • Z Formula Units: 4
  • Density: ρ = 4.11 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
B11 [nm2]
B22 [nm2]
B33 [nm2]
B12 [nm2]
B13 [nm2]
B23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_2070181

  • 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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