Inorganic Solid Phases

[Rb6.4(H2O)14.9][Al6.3Si25.7O64.0], RMA-2 (MER type) (Rb3.15Al3.15Si12.85O32[H2O]7.45) Crystal Structure

General Information

  • Phase Label(s): Rb3.15Al3.15Si12.85O32[H2O]7.45
  • Structure Class(es): zeolite MER
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: tI132
  • Space Group: 139
  • Phase Prototype: Rb3.2(Al0.20Si0.80)16O32[H2O]7.45
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS D8 ADVANCE (determination of structural parameters), X-rays, Cu Kα1; λ = 0.1540598 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement, wRP = 0.0314; RB = 0.0089
  • Sample Detail(s): sample prepared from Al[OH]3, RbOH, SiO2, inductive coupled plasma method; Si/Al ratio 4.2, 4.1 from NMR analysis, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Rb3.15Al3.15Si12.85O32[H2O]7.45
  • Alphabetic Formula: Al3.15[H2O]7.45O32Rb3.15Si12.85
  • Published Formula: [Rb6.4(H2O)14.9][Al6.3Si25.7O64.0], RMA-2 (MER type)
  • Refined Formula: Al3.15H14.88O39.44Rb3.20Si12.85
  • Wyckoff Sequence: 139,onml2kiedba
  • Z Formula Units: 2
  • Density: ρ = 2.26 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_1626760

  • 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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