Rhombohedral crystal structure of compounds containing boron-rich icosahedra

Journal Article · Tue Apr 15 04:00:00 EST 1986 · AIP Conf. Proc.; (United States)

DOI:https://doi.org/10.1063/1.35589· OSTI ID:5728040

Morosin, B; Mullendore, A W; Emin, D; Slack, G A

The crystal structures of several icosahedral boron containing compounds have been refined using Mo K..cap alpha.. intensity data. Though these compounds, ..cap alpha..-boron, boron carbide, boron phosphide and boron arsenide, differ chemically, all have the same basic rhombohedral structure. The structures consist of icosahedral units bonded together with direct B-B bonds as well as other linkage units. Similarities in electron distributions are found with respect to the icosahedra in all the compounds; differences are associated with the linkage units. The icosahedral bond distances show trends as one progresses along the series with increasing linkage units.

• Research Organization: Sandia National Laboratories, Albuquerque, NM 87185
• OSTI ID: 5728040
• Report Number(s): CONF-850786-
• Journal Information: AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 140:1; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ARSENIC COMPOUNDS
ARSENIDES
BOND LENGTHS
BORON
BORON ARSENIDES
BORON CARBIDES
BORON COMPOUNDS
BORON PHOSPHIDES
CARBIDES
CARBON COMPOUNDS
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DATA
DIFFRACTION
DIMENSIONS
DISTRIBUTION FUNCTIONS
ELECTRON DENSITY
ELEMENTS
EXPERIMENTAL DATA
FUNCTIONS
INFORMATION
LATTICE PARAMETERS
LEAST SQUARE FIT
LENGTH
MAXIMUM-LIKELIHOOD FIT
MONOCRYSTALS
NUMERICAL DATA
NUMERICAL SOLUTION
ORTHORHOMBIC LATTICES
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
SCATTERING
SEMIMETALS
SPACE GROUPS
X-RAY DIFFRACTION