Inorganic Solid Phases

Bi1.667Mg0.70Nb1.52O7 (Mg0.64Nb1.53Bi1.67O7) Crystal Structure

General Information

  • Phase Label(s): Mg0.64Nb1.53Bi1.67O7
  • Structure Class(es): pyrochlore family
  • Classification by Properties: nonmetal
  • Mineral Name(s):
  • Pearson Symbol: cF88
  • Space Group: 227
  • Phase Prototype: Ca2Nb2O7
  • Measurement Detail(s): Guinier-Hägg film (determination of cell parameters), automatic diffractometer; Australia, Lucas Heights, Australian Nuclear Science and Technology Organisation, HIFAR reactor, HRPD (determination of structural parameters), X-rays, Cu Kα1 (determination of cell parameters), neutrons; λ = 0.14913 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, RP = 0.0538; wRP = 0.0665
  • Sample Detail(s): sample prepared from Bi2O3, MgO, Nb2O5, electron microprobe analysis; composition confirmed, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg0.70Nb1.52Bi1.667O7
  • Alphabetic Formula: Bi1.667Mg0.70Nb1.52O7
  • Published Formula: Bi1.667Mg0.70Nb1.52O7
  • Refined Formula: Bi1.66Mg0.70Nb1.52O7
  • Wyckoff Sequence: 227,hfec
  • Z Formula Units: 8
  • Density: ρ = 6.97 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_1623100

  • 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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