Iridium(III) iodide

Iridium(III) iodide
Names
	Other names Iridium triiodide
Identifiers
CAS Number	7790-41-2;
3D model (JSmol)	Interactive image; dihydrate: Interactive image; trihydrate: Interactive image;
ChemSpider	9226575;
PubChem CID	18534463;
CompTox Dashboard (EPA)	DTXSID00453279 ;
	InChI InChI=1S/3HI.Ir/h3*1H;/q;;;+3/p-3 Key: WUHYYTYYHCHUID-UHFFFAOYSA-K;
	SMILES [I-].[I-].[I-].[Ir+3]; dihydrate: O.O.[I-].[I-].[I-].[Ir+3]; trihydrate: O.O.O.[I-].[I-].[I-].[Ir+3];
Properties
Chemical formula	I3Ir
Molar mass	572.930 g·mol−1
Appearance	dark brown solid
Density	7.4 g·cm−3
Solubility	insoluble in water and benzene
Related compounds
Other anions	iridium(III) hydroxide; iridium(III) chloride; Iridium(III) bromide
Other cations	Rhodium(III) iodide
Related compounds	Iridium(IV) iodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Iridium(III) iodide is an iodide of iridium, with the chemical formula of IrI₃.

Preparation[edit]

Iridium(III) iodide can be obtained by reducing iridium(IV) iodide with hydrogen at 210 °C.^[2] It can also be formed by the reaction of iridium dioxide^[3] or iridium(III) hydroxide with hydrogen iodide.^[4]

Chemical properties[edit]

Iridium(III) iodide is a dark brown solid that is insoluble in water.^[1] It is monoclinic like chromium trichloride.^[5]^[6] Its trihydrate is yellow and can be dehydrated into the dihydrate or anhydrous form on heating. Iridium(III) iodide also has a monohydrate.^[3]^[7]

References[edit]

^ ^a ^b ^c ^d Dale L. Perry (2016). Handbook of Inorganic Compounds, Second Edition. CRC Press. p. 523. ISBN 978-1-4398-1462-8.
^ Malatesia, Lamberto (March 31, 1961). PART I - STUDIES ON RHENIUM COORDINATION COMPOUNDS: HEXAISOCYANIDERHENIUM(I) SALTS; PART il - STUDIES ON IRIDIUM COMPOUNDS: ISOCYANIDE DERIVATIVES OF IRIDIUM, CARBONYL DERIVATIVES OF IRIDIUM IODIDES (PDF) (Report). Archived from the original (PDF) on 2018-10-30.
^ ^a ^b William Pettit Griffith (1967). The chemistry of the rarer platinum metals (Os, Ru, Ir, and Rh). Interscience Publishers. p. 241.
^ Raymond Eller Kirk; Donald Frederick Othmer; Herman Francis Mark (1963–1970). WHICH VOLUME?. Encyclopedia of Chemical Technology: Editorial board: Herman F. Mark, chairman, John J. McKetta, Jr. [and] Donald F. Othmer. Interscience Publishers. p. 871. OCLC 2519460.^{[full citation needed]}
^ R. Blachnik (2013). Taschenbuch für Chemiker und Physiker Band 3: Elemente, anorganische Verbindungen und Materialien, Minerale. Springer-Verlag. p. 494. ISBN 978-3-642-58842-6.
^ Brodersen, K. (February 1968). "Structure of β-RuCl3, RuI3, IrBr3, and IrI3". Angewandte Chemie International Edition in English. 7 (2): 148. doi:10.1002/anie.196801481. ISSN 0570-0833.
^ H. J. Kandiner (2013). Iridium. Springer-Verlag. ISBN 978-3-662-12128-3.

[Dale_L._Perry-1] Dale L. Perry (2016). Handbook of Inorganic Compounds, Second Edition. CRC Press. p. 523. ISBN 978-1-4398-1462-8.

[2] Malatesia, Lamberto (March 31, 1961). PART I - STUDIES ON RHENIUM COORDINATION COMPOUNDS: HEXAISOCYANIDERHENIUM(I) SALTS; PART il - STUDIES ON IRIDIUM COMPOUNDS: ISOCYANIDE DERIVATIVES OF IRIDIUM, CARBONYL DERIVATIVES OF IRIDIUM IODIDES (PDF) (Report). Archived from the original (PDF) on 2018-10-30.

[William_Pettit_Griffith-3] William Pettit Griffith (1967). The chemistry of the rarer platinum metals (Os, Ru, Ir, and Rh). Interscience Publishers. p. 241.

[Raymond_Eller_Kirk,_Donald_Frederick_Othmer,_Herman_Francis_Mark-4] Raymond Eller Kirk; Donald Frederick Othmer; Herman Francis Mark (1963–1970). WHICH VOLUME?. Encyclopedia of Chemical Technology: Editorial board: Herman F. Mark, chairman, John J. McKetta, Jr. [and] Donald F. Othmer. Interscience Publishers. p. 871. OCLC 2519460.^{[full citation needed]}

[R._Blachnik-5] R. Blachnik (2013). Taschenbuch für Chemiker und Physiker Band 3: Elemente, anorganische Verbindungen und Materialien, Minerale. Springer-Verlag. p. 494. ISBN 978-3-642-58842-6.

[6] Brodersen, K. (February 1968). "Structure of β-RuCl3, RuI3, IrBr3, and IrI3". Angewandte Chemie International Edition in English. 7 (2): 148. doi:10.1002/anie.196801481. ISSN 0570-0833.

[H._J._Kandiner-7] H. J. Kandiner (2013). Iridium. Springer-Verlag. ISBN 978-3-662-12128-3.

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