oktaedrien

Oktaedrien is a term that can refer to several related concepts, primarily within the fields of geometry and chemistry. In geometry, an octahedron is a polyhedron with eight faces, twelve edges, and six vertices. The most common and regular form is the regular octahedron, which is one of the five Platonic solids. It is composed of eight equilateral triangles, meeting four at each vertex. It can also be seen as two square pyramids joined at their bases.

In chemistry, an octahedral molecular geometry describes the arrangement of six atoms or functional groups around a central atom. This geometry is characterized by the central atom being at the center of a cube, and the six ligands being at the centers of the faces of the cube. This arrangement results in bond angles of 90 degrees and 180 degrees between adjacent ligands. Many transition metal complexes exhibit octahedral geometry, such as hexaaquairon(II) or hexaamminecobalt(III).

The term "oktaedrien" might also be used informally in other contexts, but its primary and most established meanings are in geometry and chemistry. The understanding of octahedral structures is fundamental in fields ranging from crystallography to stereochemistry, influencing properties such as reactivity and physical characteristics.