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Crystal structure of OsO 4 [4] Osmium(VIII) oxide forms monoclinic crystals. [4] [8] It has a characteristic acrid chlorine-like odor. The element name osmium is derived from osme, Greek for odor. OsO 4 is volatile: it sublimes at room temperature. It is soluble in a wide range of organic solvents.
The structure of osmium tetrachloride (green = chlorine, blue = osmium. Osmium tetrachloride exists in two crystalline forms, and is used to prepare other osmium complexes. It was first reported in 1909 as the product of chlorination of osmium metal. [28] This route affords the high temperature polymorph: [29] Os + 2 Cl 2 → OsCl 4
The reflectivity of single crystals of osmium is complex and strongly direction-dependent, with light in the red and near-infrared wavelengths being more strongly absorbed when polarized parallel to the c crystal axis than when polarized perpendicular to the c axis; the c-parallel polarization is also slightly more reflected in the mid ...
It was first reported in 1909 as the product of chlorination of osmium metal. [1] This route affords the high temperature polymorph: [2] Os + 2 Cl 2 → OsCl 4. This reddish-black polymorph is orthorhombic and adopts a structure in which osmium centres are octahedrally coordinated, sharing opposite edges of the OsCl 6 octahedra to form a chain. [3]
Osmium dioxide is an inorganic compound with the formula OsO 2.It exists as brown to black crystalline powder, but single crystals are golden and exhibit metallic conductivity.
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Crystal structure of table salt (sodium in purple, chlorine in green). In crystallography, crystal structure is a description of ordered arrangement of atoms, ions, or molecules in a crystalline material. [1]
Sharpless asymmetric dihydroxylation (also called the Sharpless bishydroxylation) is the chemical reaction of an alkene with osmium tetroxide in the presence of a chiral quinine ligand to form a vicinal diol.