Octahedral in a sentence

Likewise if the meteorite is dominated by the face centered taenite it is called an octahedrite as kamacite will exsolve from the octahedral crystal boundaries of taenite making the meteorite appear octahedral.

The actual blue wavelength varied with the number of layers of octahedral perovskite crystals, which are separated from one another by a layer of organic molecules that allows easy separation of perovskite layers and also protects the surface.

A related type of isomerism in octahedral MX 3 Y 3 complexes is facial–meridional (or fac/mer) isomerism, in which different numbers of ligands are cis or trans to each other.

As the formula suggests these substances contain M(OH) 6 octahedral structural units.

Both iron and magnesium are in octahedral by oxygen.

Chromium(III) ions tend to form octahedral complexes.

Chromium(I) Most Cr(I) compounds are obtained by oxidation of electron-rich, octahedral Cr(0) complexes.

Coordination complexes In inorganic coordination complexes with octahedral or square planar geometries, there are also cis isomers in which similar ligands are closer together and trans isomers in which they are further apart.

Dyar and Gunter, pp. 110–113 Micas are also T-O-T-stacked phyllosilicates, but differ from the other T-O-T and T-O-stacked subclass members in that they incorporate aluminium into the tetrahedral sheets (clay minerals have Al 3+ in octahedral sites).

Fluorite has four perfect cleavage planes that help produce octahedral fragments.

For instance, a sphere with an octahedral cavity and a small internal weight will settle with one of the 6 points of the cavity held downwards by the weight.

In centrosymmetric complexes, such as octahedral complexes, d-d transitions are forbidden by the Laporte rule and only occur because of vibronic coupling in which a molecular vibration occurs together with a d-d transition.

In Conway polyhedron notation it can be seen as gT, a gyro tetrahedron. : Rhombic dodecahedron Rhombic dodecahedron The rhombic dodecahedron is a zonohedron with twelve rhombic faces and octahedral symmetry.

In having properties of magnetic equilibrium and formation of octahedral complexes, they contrast with the divalent complexes of the heavier group 10 metals, palladium(II) and platinum(II), which form only square-planar geometry.

In very high-pressure situations, silicon will be six-fold or octahedral coordination, such as in the perovskite structure or the quartz polymorph stishovite (SiO 2 ).

Lithium ions substitute for magnesium and iron in octahedral sites in clay minerals, where 6 Li is preferred to 7 Li, resulting in enrichment of the light isotope in processes of hyperfiltration and rock alteration.

Octahedral cleavage (four directions) is present in fluorite and diamond, and sphalerite has six-directional dodecahedral cleavage.

Octahedral coordination by 6 oxygen centres is observed.

Octahedral shape of a diamond The astronomer Aristarchus of Samos was the first known person to propose a heliocentric model of the solar system, while the geographer Eratosthenes accurately calculated the circumference of the Earth.

Pyroxenes have a general structure formula of XY(Si 2 O 6 ), where X is an octahedral site, while Y can vary in coordination number from six to eight.