Osmium

Osmium compounds

This section listsome binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of osmium. For each compound, a formal oxidation number for osmium is given, but the usefulness of this number is limited for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only. The term hydride is used in a generic sense to indicate compounds of theype M_xH_y and not necessarily to indicate that any compounds listed behave chemically as hydrides. In compounds of osmium (where known), the most common oxidation numbers of osmium are: 4.

Hydrides

The term hydride is used to indicate compounds of the type M_xH_y and not necessarily to indicate that any compounds listed behave as hydrides chemically.

• none listed

Fluorides

• Osmium hexafluoride: OsF₆
• Osmium octafluoride: OsF₈
• Osmium tetrafluoride: OsF₄
• Osmium heptafluoride: OsF₇
• Osmium pentafluoride: [OsF₅]₄

Chlorides

• Osmium trichloride: OsCl₃
• Osmium tetrachloride: OsCl₄
• Osmium pentachloride: OsCl₅

Bromides

• Osmium tetrabromide: OsBr₄

Iodis

• Osmium iodide: OsI
• Osmium diiodide: OsI₂
• Osmium triiodide: OsI₃

Oxides

• Osmium dioxide: OsO₂
• Osmium tetraoxide: OsO₄

Sulfides

• Osmium disulphide: OsS₂

Selenides

• Osmium diselenide: OsSe₂

Tellurides

• Osmium ditelluride: OsTe₂

Nitrides

• none listed

Carbonyls

• href="../compounds/osmium/osmium_pentcarbonyl.html">Osmium pentacarbonyl: Os(CO)₅
• Diosmium nonacarbonyl: Os₂(CO)₉
• Triosmium dodecacarbonyl: Os₃(CO)₁₂
• Hexaosmium octadecacarbonyl: Os₆(CO)₁₈
• Octaosmium trieicosacarbonyl: Os₈(CO)₂₃
• Pentaosmium hexadecacarbonyl: Os₅(CO)₁₆
• Oentaosmium nonadecacarbonyl: Os₅(CO)₁₉
• Heptaosmium uneicosacarbonyl: Os₇(CO)₂₁

Complexes

• Dihydrogen hexabromoosmate: H₂[OsBr₆]
• Disodium hexachloroosmiate: Na₂[OsCl₆]
• Triaquatrichloroosmium: OsCl₃(OH₂)₃
• Diammonium hexabromoosmiate: (NH₄)₂[OsBr₆]
• Diammonium hexachloroosmiate: (NH₄)₂[OsCl₆]
• Dipotassium hexachloroosate: K₂[OsCl₆]
• Osmocene: Os(C₅H₅)₂
• Pentamethylosmocene: Os(C₅Me₅)₂

Standard Reduction Potentials



References

Thetandard reduction potentials given here for aqueous solutions are adapted from the IUPAC publication reference 1 with additional data and an occasional correction incorporated from many other sources, in particular, references 2-7.

1. A.J. Bard, R. Parsons, and J. Jordan, Standard Potentials in Aqueous Solutions, IUPAC (Marcel Dekker), New York, USA, 1985.
2. N.N. Greenwood and A. Earnshaw, Chemistry of the Elements2nd edition, Butterworth-Heinemann, Oxford, UK, 1997.
3. F.A. Cotton and G. Wilkinson, Advanced Inorganic Chemistry, 5th edition, John Wiley & Sons, New York, USA, 1988.
4. B. Douglas, D.H. McDaniel, and J.J. Alexander, Concepts and models of Inorganic Chemistry, 2nd edition, John Wiley & Sons, New York, USA, 1983.
5. D.F. Shriver, P.W. Atkins, and C.H. Langford, Inorganic Chemstry, 3rd edition, Oxford University Press, Oxford, UK, 1999.
6. J.E. Huheey, E.A. Keiter, and R.L. Keiter in Inorganic Chemistry : Principles of Structure and Reactivity, 4th edition, HarperCollins, New York, USA, 1993.
7. G.T. Seaborg and W.D. Loveland in The elements beyond uranium, John Wiley & Sons, New York, USA, 1990.

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