THE CRYSTAL STRUCTURE OF YB4,
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 using the ThB4 was confirmed; however, significant departures in occupany of boron positions were noted. One boron position (B III) was found to be about 25% defective. As a consequence, each octahedral boron group is on the average one atom short. This argues against the earlier proposed structure interpretation 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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1965
- Accession Number
- AD0613474
Entities
People
- J. Economy
- R. F. Giese Jr.
- V. I. Matkovich