Inorganic Solid Phases

Na2.7K5.3Ti4Si12O36·4H2O; UND-1 (K1.33Na0.67TiSi3O9[H2O]) Crystal Structure

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General Information

  • Phase Label(s): K1.33Na0.67TiSi3O9[H2O]
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: mP64
  • Space Group: 14
  • Phase Prototype: K2ZrSi3O9[H2O]
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Enraf-Nonius CAD4 (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 293 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 145 variables; 1087 reflections; F2 > 3σ(F2), R = 0.03834; wR = 0.06775
  • Sample Detail(s): sample prepared from colloidal silica, P25, NaOH, KF, inductive coupled plasma method; 18.2 wt.% K2O, 6.0 wt.% Na2O, 23.3 wt.% TiO2, 52.5 wt.% SiO2, single crystal (determination of cell parameters), single crystal, 0.05×0.06×0.26 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K1.33Na0.67TiSi3O9[H2O]
  • Alphabetic Formula: [H2O]K1.33Na0.67O9Si3Ti
  • Published Formula: Na2.7K5.3Ti4Si12O36·4H2O; UND-1
  • Refined Formula: H2K1.33Na0.67O10Si3Ti
  • Wyckoff Sequence: 14,e16
  • Z Formula Units: 4
  • Density: ρ = 2.65 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
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_1923488

  • 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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