Iridium - ₇₇Ir: compounds information

This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of iridium. For each compound, a formal oxidation number for iridium 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.

In compounds of iridium (where known), the most common oxidation numbers of iridium are: 4, and 3.

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

• Iridium trifluoride: IrF₃
• Iridium hexafluoride: IrF₆
• Iridium tetrafluoride: IrF₄
• Iridium pentafluoride tetramer: [IrF₅]₄

Chlorides

• Iridium dichloride: IrCl₂
• Iridium trichloride: IrCl₃
• Iridium tetrachloride: IrCl₄

Bromides

• Iridium tribromide: IrBr₃
• Iridium tetrabromide: IrBr₄

Iodides

• Iridium diiodide: IrI₂
• Iridium triiodide: IrI₃
• Iridium tetraiodide: IrI₄

Oxides

• Iridium dioxide: IrO₂
• Diiridium trioxide: Ir₂O₃
• Iridium oxide dihydrate: IrO₂.2H₂O

Sulfides

• Iridium disulphide: IrS₂
• Diiridium trisulphide: Ir₂S₃

Selenides

• Iridium diselenide: IrSe₂

Tellurides

• Iridium ditelluride: IrTe₂

Nitrides

• none listed

Carbonyls

• Diiridium octacarbonyl: Ir₂(CO)₈
• Tetrairidium dodecacarbonyl: Ir₄(CO)₁₂
• Hexairidium hexadecacarbonyl: Ir₆(CO)₁₆

Complexes

• Disodium hexachloroiridate hexahydrate: Na₂[IrCl₆].6H₂O
• Disodium hexabromoiridate: Na₂[IrBr₆]
• Iridium chloride trihydrate: IrCl₃.3H₂O
• Dipotassium hexabromoiridate: K₂[IrBr₆]
• Dipotassium hexachloroiridate: K₂[IrCl₆]
• Diammonium hexachloro iridate: (NH₄)₂[IrCl₆]
• Tripotassium hexacyanooiridate: K₃[Ir(CN)₆]
• Tripotassium hexanitroiridate: K₃[Ir(NO₂)₆]
• Triammonium hexachloro iridate: (NH₄)₃[IrCl₆]
• Iridium tribromide tetrahydrate: IrBr₃.4H₂O
• Hydridocarbonyltris(triphenylphosphine) iridium: IrH(CO)(PPh₃)₃
• Chlorocarbonylbis(triphenylphosphine) iridium: IrCl(CO)(PPh₃)₂
• Chlorotricarbonyl iridium: IrCl(CO)₃