Inorganic Solid Phases

(NH4)[M(H2O)6](SO4)2, M= Cr ([NH4]2Cr[SO4]2[H2O]6) Crystal Structure

Get Access CIF Download help (pdf)

General Information

  • Phase Label(s): [NH4]2Cr[SO4]2[H2O]6
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: mP38
  • Space Group: 14
  • Phase Prototype: [NH4]2Mg[SO4]2[H2O]6-b
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Rigaku AFC5R (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 295 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): sulfate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, least-squares refinement; F2 > 3σ(F2), R = 0.024; wR = 0.043
  • Sample Detail(s): sample prepared from CrCO3, H2O, [NH4]2CO3, [NH4]2SO4, H2SO4, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: [NH4]2Cr[SO4]2[H2O]6
  • Alphabetic Formula: Cr[H2O]6[NH4]2[SO4]2
  • Published Formula: (NH4)[M(H2O)6](SO4)2, M= Cr
  • Refined Formula: CrH20N2O14S2
  • Wyckoff Sequence: 14,e9b
  • Z Formula Units: 2
  • Density: ρ = 1.81 Mg·m−3
View 3D Interactive Structure

Cite this page

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
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1411512

  • 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

    Download this citation

    Citation copied