Inorganic Solid Phases

La(Si2.625Al0.5)N5; LaSi3−3x/4AlxN5:Ce3+, x= 0.5 (La0.98Ce0.02AlSi2.25N5) Crystal Structure

General Information

  • Phase Label(s): La0.98Ce0.02AlSi2.25N5
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oP36
  • Space Group: 19
  • Phase Prototype: CeSi3N5
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; South Korea, Pohang Accelerator Laboratory PAL, PLS reactor, 8C2 beamline, HRPD (determination of structural parameters), X-rays, synchrotron (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): nitride
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement, multiphase, RP = 0.160; wRP = 0.183
  • Sample Detail(s): sample prepared from LaN, α-Si3N4, CeN, AlN, energy-dispersive X-ray analysis; trace amounts of La2Si6N8O3, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: La0.98Ce0.02Al0.5Si2.625N5
  • Alphabetic Formula: Al0.5Ce0.02La0.98N5Si2.625
  • Published Formula: La(Si2.625Al0.5)N5; LaSi3−3x/4AlxN5:Ce3+, x= 0.5
  • Refined Formula: Al0.38LaN5Si2.63
  • Wyckoff Sequence: 19,a9
  • Z Formula Units: 4
  • Density: ρ = 4.57 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]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1632307

  • 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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