Recycling Organoiridium Waste to [(1,5-Cyclooctadiene)IrCl] 2

Recycling Organoiridium Waste to [(1,5-Cyclooctadiene)IrCl] 2

We report the first process for iridium element recovery from organoiridium waste that is quantitative, pyrolysis-free, and generates no iridium metal. The key step is oxidative degradation of the waste by bleach to crude iridium(IV) hydroxide. Its treatment with hydrazine and then hydrogen peroxide...

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Veröffentlicht in:Green chemistry : an international journal and green chemistry resource : GC 2024-03, Vol.26 (6), p.3146-3148
Hauptverfasser: Cherepakhin, Valeriy, Williams, Travis J
Format: Artikel
Sprache:eng
Schlagworte:
Bleaches
Hydrazine
Hydrazines
Hydrogen peroxide
Iridium
Pyrolysis
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Zusammenfassung:We report the first process for iridium element recovery from organoiridium waste that is quantitative, pyrolysis-free, and generates no iridium metal. The key step is oxidative degradation of the waste by bleach to crude iridium(IV) hydroxide. Its treatment with hydrazine and then hydrogen peroxide gives synthetically important hexachloroiridic acid, which is converted to [(1,5-cyclooctadiene)IrCl] in 87% yield.
ISSN:1463-9262
1463-9270
DOI:10.1039/d4gc00151f