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Iridium(IV) oxide, IrO 2, is the only well-characterised oxide of iridium. It is a blue-black solid. It is a blue-black solid. The compound adopts the TiO 2 rutile structure , featuring six coordinate iridium and three coordinate oxygen.
Another oxide, iridium tetroxide, is also known, with iridium in the +8 oxiation state. [7] This compound was formed by photochemical rearrangement of [(η 1-O 2)IrO 2] in solid argon at a temperature of 6 K (−267.15 °C; −448.87 °F). At higher temperatures, the oxide is unstable. [8] The detection of the iridium tetroxide cation IrO +
Iridium tetroxide (IrO 4, Iridium(VIII) oxide) is a binary compound of oxygen and iridium in oxidation state +8. [1] This compound was formed by photochemical rearrangement of [(η 1-O 2)IrO 2] in solid argon at a temperature of 6 K (−267.15 °C; −448.87 °F).
Iridium compounds are used as catalysts in the Cativa process for carbonylation of methanol to produce acetic acid. [92] [93] Iridium complexes are often active for asymmetric hydrogenation both by traditional hydrogenation. [94] and transfer hydrogenation. [95] This property is the basis of the industrial route to the chiral herbicide (S ...
Iridium oxide (IrO 2) is the industry standard OER catalyst used in polymer electrolyte membrane electrolysis due to its high stability. [15] It was first proposed in the 1970s as an OER catalyst, and has been widely researched and implemented since then. [16]
This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula.The CAS number is a unique number applied to a specific chemical by the Chemical Abstracts Service (CAS).This list complements alternative listings to be found at list of inorganic compounds and glossary of chemical formulae
Pages in category "Iridium compounds" The following 24 pages are in this category, out of 24 total. ... Iridium(IV) oxide; Iridium(V) fluoride; L. Lithium iridate; S.
An oxide (/ ˈ ɒ k s aɪ d /) is a chemical compound containing at least one oxygen atom and one other element [1] in its chemical formula. "Oxide" itself is the dianion (anion bearing a net charge of –2) of oxygen, an O 2– ion with oxygen in the oxidation state of −2. Most of the Earth's crust consists of oxides. Even materials ...