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Related Experiment Videos

Barium oxoaluminate hydride.

M Zumdick1, G Althoff, C Röhr

  • 1Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 21, D-79104 Freiburg, Germany.

Acta Crystallographica. Section C, Crystal Structure Communications
|April 21, 2001
PubMed
Summary

The crystal structure of Barium Aluminum Oxide Hydride (Ba(3)(AlO(4))H) was determined, revealing unique coordination of hydride and oxide anions. Deuterated compound analysis confirmed hydrogen content via NMR.

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Potassium oxoantimonate(V), K(3)[SbO(4)].

Acta crystallographica. Section C, Crystal structure communications·2001

Area of Science:

  • Solid-state chemistry
  • Inorganic crystal structure analysis
  • Materials science

Background:

  • Barium compounds exhibit diverse crystal structures.
  • Understanding anion coordination is crucial for materials properties.
  • The specific structure of Ba(3)(AlO(4))H was previously unknown.

Purpose of the Study:

  • To elucidate the crystal structure of Ba(3)(AlO(4))H.
  • To characterize the coordination environment of anions within the structure.
  • To confirm hydrogen content using spectroscopic methods.

Main Methods:

  • Single-crystal X-ray diffraction for crystal structure determination.
  • Anion coordination analysis based on atomic positions.
  • Magic Angle Spinning Nuclear Magnetic Resonance (MAS-NMR) spectroscopy on a deuterated sample.

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Main Results:

  • Ba(3)(AlO(4))H is isotypic with Ba(3)SiS(5).
  • The structure contains [AlO(4)](5-) and H(-) anions.
  • Both hydride and oxide anions exhibit octahedral coordination involving barium and aluminum atoms.

Conclusions:

  • The crystal structure of Ba(3)(AlO(4))H has been successfully determined.
  • The coordination chemistry reveals specific interactions between anions and cations.
  • MAS-NMR confirms the presence and content of hydrogen in the material.