#iridium_tetroxide
Iridium tetroxide
Chemical compound
Iridium tetroxide (IrO4, Iridium(VIII) oxide) is a binary compound of oxygen and iridium in oxidation state +8. This compound was formed by photochemical rearrangement of [(η1-O2)IrO2] in solid argon at a temperature of 6 K (−267.15 °C; −448.87 °F). At higher temperatures, the oxide is unstable. The detection of the iridium tetroxide cation IrO+4 by infrared photodissociation spectroscopy with formal oxidation state +9 has been reported, the highest currently known of any element. However no salts are known, as attempted production of an Ir(IX) salt such as IrO4SbF6 did not result in anything.
Thu 29th
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