Английская Википедия:Iridium tetroxide
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Iridium tetroxide (IrO4, Iridium(VIII) oxide) is a binary compound of oxygen and iridium in oxidation state +8.[1] This compound was formed by photochemical rearrangement of Шаблон:!((η1-O2)IrO2Шаблон:)! in solid argon at a temperature of Шаблон:Convert. At higher temperatures, the oxide is unstable.[2] The detection of the iridium tetroxide cation Шаблон:Chem by infrared photodissociation spectroscopy with formal oxidation state +9 has been reported, the highest currently known of any element.[3][4] However no salts are known, as attempted production of an Ir(IX) salt such as IrO4SbF6 did not result in anything.
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Шаблон:Iridium compounds Шаблон:Oxides
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