Inorganic Solid Phases

K2Fe(HP2O7)(H2PO4)2 (H5K2Fe[PO4]2[P2O7]) Crystal Structure

General Information

  • Phase Label(s): H5K2Fe[PO4]2[P2O7]
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oP88
  • Space Group: 29
  • Phase Prototype: H5K2Fe[PO4]2[P2O7]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips X'Pert MPD (determination of structural parameters), X-rays (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthophosphate, diphosphate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement, wRP = 0.0144; RB = 0.0936
  • Sample Detail(s): sample prepared from Fe2O3 (hematite), H3PO4, K2CO3, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: H5K2Fe[PO4]2[P2O7]
  • Alphabetic Formula: FeH5K2[PO4]2[P2O7]
  • Published Formula: K2Fe(HP2O7)(H2PO4)2
  • Refined Formula: FeH5K2O15P4
  • Wyckoff Sequence: 29,a22
  • Z Formula Units: 4
  • Density: ρ = 2.55 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_1125222

  • 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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