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The crystal structure of YB4
Published/Copyright:
July 28, 2010
Abstract
A structure determination of YB4 was carried out in order to determine the boron positions in metal tetraborides. The structure proposed by earlier workers based on ThB4 was confirmed; however, departures in the occupancy of some boron positions were found. As a consequence, each octahedral boron group is, on the average, one atom short. This argues against the structure interpretation proposed earlier, which was based on a continuous framework of boron atoms. A new crystal-chemical interpretation of the tetraboride structure is presented in terms of tetrahedral units which demonstrates a structural framework common to MB4, M3B2, and M2B type compounds.
Published Online: 2010-07-28
Published in Print: 1965-12
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Articles in the same Issue
- The formation of a spinel and a hexagonal ferrite by the thermal transformation of cronstedtite
- Growth of NaCl whiskers on NaCl single crystals
- A condensed way of representing inorganic close-packed structures
- Systematic derivation of inorganic close-packed structures: AX and AX2 compounds, sequence of equal layers
- Die Kristallstruktur von Lanthantrifluorid
- Über Verbindungen vom Anti-LaF3-Strukturtyp
- Atomanordnung und Strukturverfeinerung von Cancrinit
- The crystal structure of YB4
- The crystal structure of rathite-I*
- A phase transition in potassium chromium sulphate alum at low temperature
- Origin of dislocations in solution-grown crystals
- L'oxonium dans certains composés uranifères
- An x-ray study of metal complexes of biguanide
- A preliminary investigation of the structure of mercury dibenzyl
