Inorganic Solid Phases

KCo2(AsO4)(HAsO4) (HKCo2[AsO4]2) Crystal Structure

General Information

  • Phase Label(s): HKCo2[AsO4]2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mP52
  • Space Group: 13
  • Phase Prototype: HKCo2[AsO4]2
  • Measurement Detail(s): automatic diffractometer; 19 (determination of cell parameters), automatic diffractometer; Nicolet R3m/V (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 296 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): arsenate
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 120 variables; 759 reflections; I > 3σ(I), R = 0.0309; wR = 0.0334
  • Sample Detail(s): sample prepared from Co[OH]2, KOH, H3AsO4, energy-dispersive X-ray analysis; K/Co/As ratio 1/2/2; amounts of unidentified phase (purple, main phase), single crystal (determination of cell parameters), single crystal, 0.04×0.20×0.44 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: HKCo2[AsO4]2
  • Alphabetic Formula: [AsO4]2Co2HK
  • Published Formula: KCo2(AsO4)(HAsO4)
  • Refined Formula: As2Co2HKO8
  • Wyckoff Sequence: 13,g12fe
  • Z Formula Units: 4
  • Density: ρ = 4.25 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_1414808

  • 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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