Inorganic Solid Phases

(Ni,Fe)4P (Fe1.7Ni2.3P) Crystal Structure

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General Information

  • Phase Label(s): Fe1.7Ni2.3P
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): melliniite
  • Pearson Symbol: cP20
  • Space Group: 198
  • Phase Prototype: Au4Al
  • Measurement Detail(s): automatic diffractometer (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): phosphide
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement on F2; 187 reflections; F > 4σ(F), R = 0.0272
  • Sample Detail(s): melliniite sample from meteorite Northwest Africa, electron microprobe analysis; 34.9 wt.% Fe, 0.22 wt.% Co, 51.4 wt.% Ni, 0.01 wt.% Si, 0.03 wt.% Mg, 12.4 wt.% P, 0.02 wt.% S, single crystal (determination of cell parameters), single crystal, 0.015×0.020×0.020 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Fe1.66Ni2.34P
  • Alphabetic Formula: Fe1.66Ni2.34P
  • Published Formula: (Ni,Fe)4P
  • Refined Formula: Fe1.66Ni2.34P
  • Wyckoff Sequence: 198,ba2
  • Z Formula Units: 4
  • Density: ρ = 7.93 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]

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1212759

  • 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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