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Two cubic polymorphs of AlGeLi.

Monique Tillard1, Claude Belin, Laurent Spina

  • 1Laboratoire des Agrégats Moléculaires et Matériaux Inorganiques, UMR 5072 CC15, Université de Montpellier II, Sciences et Techniques du Languedoc, 2 Place Eugène Bataillon, 34095 Montpellier Cédex 5, France. mtillard@univ-montp2.fr

Acta Crystallographica. Section C, Crystal Structure Communications
|May 7, 2005
PubMed
Summary

Aluminium germanium lithium (AlGeLi) was found to crystallize in two cubic forms. Researchers confirmed one known structure and identified a new disordered centrosymmetric structure.

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Area of Science:

  • Materials Science
  • Crystallography
  • Solid-State Chemistry

Background:

  • Aluminium germanium lithium (AlGeLi) is a ternary intermetallic compound.
  • Understanding its crystal structure is crucial for potential applications.

Purpose of the Study:

  • To elucidate the crystal structures of Aluminium germanium lithium (AlGeLi).
  • To identify and characterize all crystallographic forms of AlGeLi.

Main Methods:

  • Powder X-ray diffraction (PXRD).
  • Single-crystal X-ray diffraction (SCXRD).

Main Results:

  • Confirmation of the cubic F-43m structure of AlGeLi using PXRD and SCXRD.
  • Identification of a novel, disordered centrosymmetric dimorph of AlGeLi with space group Fm-3m.

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Conclusions:

  • AlGeLi exhibits polymorphism, crystallizing in at least two distinct cubic structures.
  • The discovery of the second dimorph expands the understanding of AlGeLi's structural landscape.