The Distortion of Anti-Perovskite Nitride AsNCa3

Abstract

The structure of the distorted anti-perovskite nitride AsNCa3 has been studied both by neutron powder diffraction at 305 K and 15 K and by x-ray powder diffraction at room temperature. AsNCa3 is distorted to an orthorhombic cell where a' is the lattice constant of the ideal undistorted cubic anti- perovskite. The distortion is produced by tilting of octahedra of Ca6N and results in six short and six long bond distances of the twelve-fold coordinated As atom by Ca atoms.

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1991
Accession Number
ADA236719

Entities

People

  • F. J. Disalvo
  • J. B. Parise
  • Joyce A. Goldstone
  • Ming Y. Chern

Organizations

  • Cornell University Department of Chemistry and Chemical Biology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Copper
  • Crystal Lattices
  • Diffraction
  • Distortion
  • Elements
  • Military Research
  • Nitrogen
  • Phase Transformations
  • Residuals
  • Rotation
  • Scattering
  • Symmetry
  • Transitions
  • Universities
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Aerodynamics.
  • Materials Science and Engineering.
  • Organic Chemistry