Inorganic Solid Phases

CaMn7O12 (T = 250.0 K) Crystal Structure

General Information

  • Phase Label(s): CaMn7O12 rt
  • Structure Class(es):
  • Classification by Properties: antiferromagnet AFM, intermediate valence, nonmetal, spin glass
  • Mineral Name(s):
  • Pearson Symbol: hR60
  • Space Group: 148
  • Phase Prototype: CaMn7O12
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; France, Grenoble, European Synchrotron Radiation Facility ESRF, ID31 (determination of structural parameters), X-rays, synchrotron; λ = 0.039996 nm (determination of cell and structural parameters), T = 250.0 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): oxide
  • Interpretation Detail(s): complete structure determined; temperature dependence studied, Rietveld refinement, multiphase; 26 variables, RP = 0.1610; wRP = 0.2368
  • Sample Detail(s): sample prepared from CaCO3, Mn2O3, amounts of CaMn4O8 (2.65 wt.%) and Mn2O3 (2.32 wt.%), powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: CaMn7O12
  • Alphabetic Formula: CaMn7O12
  • Published Formula: CaMn7O12
  • Refined Formula: CaMn7O12
  • Wyckoff Sequence: 148,f2edba
  • Z Formula Units: 3
  • Density: ρ = 5.12 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_1125450

  • 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

    Citation copied