Inorganic Solid Phases

Sr7Cd3FAp or Sr10−xCdx(PO4)6Y2, x= 3, Y= F (Sr2.5Cd2.5[PO4]3F) Crystal Structure

General Information

  • Phase Label(s): Sr2.5Cd2.5[PO4]3F
  • Structure Class(es): apatite family
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP42
  • Space Group: 176
  • Phase Prototype: Ca5[PO4]3F
  • Measurement Detail(s): automatic diffractometer; Philips PW1710 (determination of structural parameters), X-rays, Cu Kα (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthophosphate, fluoride
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement; 28 variables, RP = 0.069; wRP = 0.092
  • Sample Detail(s): sample prepared from NH4H2PO4, Sr[NO3]2, Cd[NO3]2, atomic absorption spectroscopy, colorimetry, potentiometry; Cd, Sr, P and F content analyzed: Sr10−xCdx[PO4]6.02(6)F2.02(2), x= 3.06(4); (Sr+Cd)/P ratio 1.66(9)/1, powder (determination of structural parameters)

Substance Summary

  • Standard Formula: Sr3.5Cd1.5[PO4]3F
  • Alphabetic Formula: Cd1.5F[PO4]3Sr3.5
  • Published Formula: Sr7Cd3FAp or Sr10−xCdx(PO4)6Y2, x= 3, Y= F
  • Refined Formula: Cd1.50FO12P3Sr3.50
  • Wyckoff Sequence: 176,ih4fa
  • Z Formula Units: 2
  • Density: ρ = 4.56 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1716463

  • 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)

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