Inorganic Solid Phases

Sm8Cr2Si6N2O24 (Sm4CrSi3NO12) Crystal Structure

General Information

  • Phase Label(s): Sm4CrSi3NO12
  • Structure Class(es): apatite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP42
  • Space Group: 173
  • Phase Prototype: Sm5Si3(N0.33O0.67)3O10
  • Measurement Detail(s): Guinier-de Wolff film (determination of cell parameters), automatic diffractometer; Enraf-Nonius CAD4 (determination of structural parameters), X-rays (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): nitride, oxide
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 717 reflections; I > 1σ(I), R = 0.036
  • Sample Detail(s): sample prepared from Sm2O3, Cr2O3, Si3N4, SiO2, powder (determination of cell parameters), single crystal, 0.02×0.02×0.8 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Sm4CrSi3NO12
  • Alphabetic Formula: CrNO12Si3Sm4
  • Published Formula: Sm8Cr2Si6N2O24
  • Refined Formula: CrNO12Si3Sm4
  • Wyckoff Sequence: 173,c6b2a
  • Z Formula Units: 2
  • Density: ρ = 5.86 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
B [nm2]
Type
Computed
Beq [nm2]

Anisotropic

Site
β11 [nm2]
β22 [nm2]
β33 [nm2]
β12 [nm2]
β13 [nm2]
β23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1253462

  • 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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