Inorganic Solid Phases

K1−xRbxBSi2O6, x= 0.2 (Rb0.5K0.5Si2BO6) Crystal Structure

General Information

  • Phase Label(s): Rb0.5K0.5Si2BO6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: cI160
  • Space Group: 220
  • Phase Prototype: K(Si0.67B0.33)3O6
  • Measurement Detail(s): automatic diffractometer; Seifert-FPM URD-6 (determination of structural parameters), X-rays, Cu Kα; λ = 0.15418 nm (determination of structural parameters), T = 295 K (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): borate, silicate
  • Interpretation Detail(s): complete structure determined; composition dependence studied, Rietveld refinement, multiphase, RP = 0.0449; wRP = 0.0597; RB = 0.0209
  • Sample Detail(s): sample prepared from H3BO3, K2CO3, Rb2CO3, SiO2, amounts of phase 2 (space group No. 230, 28.0.%) and cristobalite (1.0 wt.%), powder (determination of structural parameters)

Substance Summary

  • Standard Formula: Rb0.2K0.8Si2BO6
  • Alphabetic Formula: BK0.8O6Rb0.2Si2
  • Published Formula: K1−xRbxBSi2O6, x= 0.2
  • Refined Formula: BK0.84O6Rb0.16Si2
  • Wyckoff Sequence: 220,e3c
  • Z Formula Units: 16
  • Density: ρ = 2.75 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_1719076

  • 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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