Osmium(IV) chloride
<templatestyles src="Chembox/styles.css"/>
Template:Chembox image cellTemplate:Chembox AllOtherNamesTemplate:Chembox headerbarTemplate:Chembox IndexlistTemplate:Chembox JmolTemplate:Chembox ChEMBLTemplate:Chembox ECHATemplate:Chembox E numberTemplate:Chembox IUPHAR ligandTemplate:Chembox UNIITemplate:Chembox CompToxTemplate:Chembox headerbarTemplate:Chembox SolubilityInWaterTemplate:Chembox headerbarTemplate:Chembox HazardsTemplate:Chembox headerbarTemplate:Chembox Datapage checkTemplate:Yesno| Template:Longitem | Template:Unbulleted list |
| ChEBI | Template:Unbulleted list |
| ChemSpider | Template:Unbulleted list |
| DrugBank | Template:Unbulleted list |
| EC Number | Template:Unbulleted list |
| KEGG | Template:Unbulleted list |
| Template:Longitem | Template:Unbulleted list |
| RTECS number | Template:Unbulleted list |
| UN number | 2471 |
| Script error: No such module "collapsible list". | |
| Script error: No such module "collapsible list". | |
| Template:Longitem | OsCl4 |
| Molar mass | 332.041 g/mol |
| Appearance | red-black orthorhombic crystals |
| Density | 4.38 g/cm3 |
| Melting point | Template:Chembox CalcTemperatures |
| Solubility | soluble in hydrochloric acid |
| Template:Longitem | Orthorhombic, oS10 |
| Template:Longitem | Cmmm, No. 65 |
| Template:Longitem | Osmium tetrabromide |
| Template:Longitem | Iron(III) chloride Ruthenium(III) chloride Osmium(III) chloride |
Template:Chembox Footer/tracking container onlyScript error: No such module "TemplatePar".Template:Short description
Osmium(IV) chloride or osmium tetrachloride is the inorganic compound composed of osmium and chlorine with the empirical formula OsCl4. It exists in two polymorphs (crystalline forms). The compound is used to prepare other osmium complexes.
Preparation, structure, reactions
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 Cl2 → OsCl4
This reddish-black polymorph is orthorhombic and adopts a structure in which osmium centres are octahedrally coordinated, sharing opposite edges of the OsCl6 octahedra to form a chain.[3] A brown, apparently cubic polymorph forms upon reduction of osmium tetroxide with thionyl chloride:[4]
- OsO4 + 4 SOCl2 → OsCl4 + 2 Cl2 + 4 SO2
Osmium tetraoxide dissolves in hydrochloric acid to give the hexachloroosmate anion:
- OsO4 + 10 HCl → H2OsCl6 + 2 Cl2 + 4 H2O
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".