Inorganic Solid Phases

Eu3.96Gd3.96Na1.2(SiO4)6(OH)0.96−2yOy (Na0.6Eu1.98Gd1.98[SiO4]3[OH]0.48) Crystal Structure

General Information

  • Phase Label(s): Na0.6Eu1.98Gd1.98[SiO4]3[OH]0.48
  • Structure Class(es): apatite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP44
  • Space Group: 176
  • Phase Prototype: Ca5[PO4]3[OH]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips X'Pert PRO MPD (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, orthosilicate
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement, RP = 0.138; wRP = 0.151; RB = 0.0269
  • Sample Detail(s): sample prepared from SiO2, NaOH, EuCl3[H2O]6, GdCl3[H2O]6, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na0.6Eu1.98Gd1.98[SiO4]3[OH]0.48
  • Alphabetic Formula: Eu1.98Gd1.98Na0.6[OH]0.48[SiO4]3
  • Published Formula: Eu3.96Gd3.96Na1.2(SiO4)6(OH)0.96−2yOy
  • Refined Formula: Eu1.96Gd1.96H0.93Na0.64O12.93Si3
  • Wyckoff Sequence: 176,ih4fe
  • Z Formula Units: 2
  • Density: ρ = 5.62 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_1522629

  • 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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