Inorganic Solid Phases

Sr2Al2Si10O4N14 (SrAlSi5N7O2) Crystal Structure

General Information

  • Phase Label(s): SrAlSi5N7O2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oI32
  • Space Group: 44
  • Phase Prototype: Sr(Al0.25Si0.75)4Si2N6(N0.5O0.5)2O
  • Measurement Detail(s): Guinier-Hägg film; 46 (determination of cell parameters), automatic diffractometer; Germany, Hamburg, Deutsches Elektronen-Synchrotron DESY, HASYLAB, DORIS III reactor, B2 (determination of structural parameters), X-rays, Cu Kα1; λ = 0.15406 nm (determination of cell parameters), X-rays, synchrotron; λ = 0.11608 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, multiphase; 60 variables; 131 reflections, R = 0.027; RP = 0.048; wRP = 0.063
  • Sample Detail(s): sample prepared from Si3N4, AlN, SrCO3, nominal composition Sr2Al2.5Si10O4N14.5; amounts of α-sialon and β-sialon, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: SrAlSi5N7O2
  • Alphabetic Formula: AlN7O2Si5Sr
  • Published Formula: Sr2Al2Si10O4N14
  • Refined Formula: AlN7O2Si5Sr
  • Wyckoff Sequence: 44,e2d2cba
  • Z Formula Units: 2
  • Density: ρ = 3.28 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]

Powder Pattern

published defraction line
2θ [°]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1003899

  • 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