Inorganic Solid Phases

Mg(AlH4)2 (MgAl2H8) Crystal Structure

General Information

  • Phase Label(s): MgAl2H8
  • Structure Class(es):
  • Classification by Properties: intercalation compound, ionic conductor, metal, nonmetal
  • Mineral Name(s):
  • Pearson Symbol: hP11
  • Space Group: 164
  • Phase Prototype: MgAl2H8
  • Measurement Detail(s): automatic diffractometer; Norway, Kjeller, Institute for Energy Technology, JEEP II reactor, OPUS II (determination of structural parameters), neutrons; λ = 0.15546 nm (determination of structural parameters), T = 295 K (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydride
  • Interpretation Detail(s): complete structure determined; temperature dependence studied, Rietveld refinement; 29 variables, RP = 0.086; wRP = 0.0109
  • Sample Detail(s): sample prepared from NaAlH4, MgCl2, amounts of NaCl (5 wt.%), powder (determination of structural parameters)

Substance Summary

  • Standard Formula: MgAl2H8
  • Alphabetic Formula: Al2H8Mg
  • Published Formula: Mg(AlH4)2
  • Refined Formula: Al2H8Mg
  • Wyckoff Sequence: 164,id2a
  • Z Formula Units: 1
  • Density: ρ = 1.05 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_1908151

  • 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

    Citation copied