ON THE FORMATION OF THE TETRAGONAL BORON MODIFICATIONS BY SUBSTITUTION OF THE BERYLLIUM ATOM IN THE B2B12 LATTICE,

Abstract

By heating BeB12 with BC13 in a closed tube, Be is substituted by B without changing of the crystal structure. The obtained boron is of > 99% purity and tetragonal structure. By this reaction the structural relation between BeB12 and the tetragonal boron modification was proved. IR examinations of alpha-boron, tetragonal boron and BeB12 allowed the assignment of internal vibrations of the B12-icosaedrons and of lattice vibrations. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1966
Accession Number
AD0631994

Entities

People

  • H. J. Becher

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Beryllium
  • Crystal Lattice Vibrations
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • East Germany
  • Germany
  • Vibration

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Organic Chemistry