Inorganic Solid Phases

Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH) (Na11TiNb2[Si2O7]2[PO4]2O3[OH]) Crystal Structure

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General Information

  • Phase Label(s): Na11TiNb2[Si2O7]2[PO4]2O3[OH]
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): vuonnemite
  • Pearson Symbol: aP47
  • Space Group: 2
  • Phase Prototype: Na11TiNb2[Si2O7]2[PO4]2O3[OH]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Nicolet R3m (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, orthophosphate, disilicate, oxide
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement on F; 3136 reflections, R = 0.018; wR = 0.023
  • Sample Detail(s): vuonnemite sample from Greenland, Ilimaussaq complex, Narssaq Kommune, twinned crystal (determination of cell parameters), single crystal, 0.13×0.15×0.30 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Na11TiNb2[Si2O7]2[PO4]2O3[OH]
  • Alphabetic Formula: Na11Nb2O3[OH][PO4]2[Si2O7]2Ti
  • Published Formula: Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)
  • Refined Formula: HNa11Nb2O26P2Si4Ti
  • Wyckoff Sequence: 2,i23g
  • Z Formula Units: 1
  • Density: ρ = 3.16 Mg·m−3
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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]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1014032

  • 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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