Inorganic Solid Phases

K3Al2As1.92P1.08O12 (K3Al2[AsO4]1.92[PO4]1.08) Crystal Structure

General Information

  • Phase Label(s): K3Al2[AsO4]1.92[PO4]1.08
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oP80
  • Space Group: 33
  • Phase Prototype: K3Al2[PO4]3
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Enraf-Nonius CAD4 (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters), T = 293(2) K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): arsenate, orthophosphate
  • Interpretation Detail(s): complete structure determined; absolute structure determined, full-matrix least-squares refinement on F2; 188 variables; 1107 reflections; I > 2σ(I), R = 0.0493; wR = 0.0609
  • Sample Detail(s): sample prepared from KOH, Al[OH]3, NH4H2AsO4, NH4H2PO4, single crystal (determination of cell parameters), single crystal, 0.04×0.06×0.07 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K3Al2[AsO4]1.92[PO4]1.08
  • Alphabetic Formula: Al2[AsO4]1.92K3[PO4]1.08
  • Published Formula: K3Al2As1.92P1.08O12
  • Refined Formula: Al2As1.93K3O12P1.08
  • Wyckoff Sequence: 33,a20
  • Z Formula Units: 4
  • Density: ρ = 2.75 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]

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_1123314

  • 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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