Inorganic Solid Phases

Pr2NiO4.22 (Pr2NiO4 rt) Crystal Structure

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General Information

  • Phase Label(s): Pr2NiO4 rt
  • Structure Class(es): high-Tc cuprate family
  • Classification by Properties: antiferromagnet AFM, nonmetal
  • Mineral Name(s): –
  • Pearson Symbol: oS28
  • Space Group: 64
  • Phase Prototype: CuLa2O4
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; France, Saclay, Laboratoire Léon Brillouin LLB, ORPHEE reactor, 5C2 (determination of structural parameters), X-rays, Cu Kα1 (determination of cell parameters), neutrons; λ = 0.083 nm (determination of structural parameters)
  • Phase Class(es): –
  • Compound Class(es): oxide
  • Interpretation Detail(s): average structure determined, full-matrix least-squares refinement on F2, R = 0.0655; wR = 0.051
  • Sample Detail(s): thermogravimetry; O content analyzed: Pr2NiO4.22(2), powder (determination of cell parameters), twinned crystal (determination of structural parameters)

Substance Summary

  • Standard Formula: Pr2NiO4.22
  • Alphabetic Formula: NiO4.22Pr2
  • Published Formula: Pr2NiO4.22
  • Refined Formula: NiO3.97Pr2
  • Wyckoff Sequence: 69,i2fea
  • Z Formula Units: 4
  • Density: ρ = 7.40 Mg·m−3
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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_1143455

  • 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)

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