octahedra
Noun
The word is derived from octahedron
Synonyms
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Examples
Each of the tetrahedral compounds is self-dual, and the compound of 5 cubes is dual to the compound of 5 octahedra.
Eight of these irregular octahedra can be attached to the triangular faces of a regular octahedron to obtain the cuboctahedron.
As cells must fit around an edge, : * The rectified 16-cell is the regular 24-cell and vertices are all equivalent octahedra are regular bipyramids.
In the lattice of corundum, the oxygen atoms form a slightly distorted hexagonal close packing in which two thirds of the gaps between the octahedra are occupied by aluminum ions.
Other convex octahedra More generally, an octahedron can be any polyhedron with eight faces.
Technetium carbonyl (Tc 2 (CO) 10 ) is a white solid. citation In this molecule, two technetium atoms are weakly bound to each other; each atom is surrounded by octahedra of five carbonyl ligands.