Inorganic Solid Phases

Bi7Nb2−2xY2xO15.5−2x, x= 0.2 (Y0.2Nb0.05Bi0.75O1.55) Crystal Structure

General Information

  • Phase Label(s): Y0.2Nb0.05Bi0.75O1.55
  • Structure Class(es): fluorite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: cF92
  • Space Group: 225
  • Phase Prototype: UO2.12
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; United Kingdom, Chilton-Didcot, Rutherford Appleton Laboratory, ISIS Facility, POLARIS (determination of structural parameters), neutrons, time-of-flight (determination of cell and structural parameters), T = 298 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; composition dependence studied; temperature dependence studied, Rietveld refinement, RP = 0.0717; wRP = 0.0415
  • Sample Detail(s): sample prepared from Bi2O3, Nb2O5, Y2O3, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Y0.044Nb0.178Bi0.778O1.678
  • Alphabetic Formula: Bi0.778Nb0.178O1.678Y0.044
  • Published Formula: Bi7Nb2−2xY2xO15.5−2x, x= 0.2
  • Refined Formula: Bi0.78Nb0.18O1.68Y0.04
  • Wyckoff Sequence: 225,ifa
  • Z Formula Units: 4
  • Density: ρ = 8.47 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]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1124422

  • 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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