Osmium iodides
Osmium iodide refers to compounds of osmium with the formula OsIn. Several have been mentioned in the literature, but only the triiodide has been verified by X-ray crystallography.[1][2]
Osmium(I) iodide
Osmium(I) iodide is the iodide of osmium with the formula OsI. It is a metallic grey solid produced by the reaction of osmium tetroxide and hydroiodic acid heated in a water bath for 48 hours in a carbon dioxide atmosphere. This compound is amorphous.[2]
Osmium(II) iodide
Osmium(II) iodide is the iodide of osmium with the formula OsI2. It is a black solid[3] produced by the reaction of osmium tetroxide and hydroiodic acid at 250 °C in nitrogen:[2]
- OsO4 + HI → OsI2 + H2O
This compound decomposes in contact with water.[3]
Osmium(III) iodide
Osmium(III) iodide is the iodide of osmium with the formula OsI3. This black solid is produced by heating hexaiodoosmic acid(H2OsI6).[2] This compound is insoluble in water.[3]
Osmium(IV) iodide
What was claimed to be osmium(IV) iodide was produced by the reaction of osmic acid (H4OsO6) and hydroiodic acid.[4] However on attempted reproduction, this substance was found to be dihydroxonium hexaiodoosmate ((H3O+)2OsI62–). When heated this did not form a tetraiodo compound, and instead formed mono, di, and tri-iodo osmium compounds.[2]
References
- ^ Köhler, J. (2014). "Halides: Solid-State Chemistry". Encyclopedia of Inorganic and Bioinorganic Chemistry. pp. 1–22. doi:10.1002/9781119951438.eibc0078.pub2. ISBN 9781119951438.
- ^ a b c d e Fergusson, J. E.; Robinson, B. H.; Roper, W. R. (1962). "405. Iodides of osmium and rhenium". Journal of the Chemical Society (Resumed): 2113. doi:10.1039/JR9620002113.
- ^ a b c George K. Schweitzer; Lester L. Pesterfield (2009). The Aqueous Chemistry of the Elements (Ebook). Oxford University Press. p. 321. ISBN 9780199742196. Retrieved 11 November 2021.
- ^ "The Chemistry of Osmium". the Sciences. Vol. 35, no. 904supp. Scientific American. 1893. pp. 14453–14454. doi:10.1038/scientificamerican04291893-14453supp.
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Salts and covalent derivatives of the iodide ion
| HI +H | He | |||||||||||||||||
| LiI | BeI2 | BI3 +BO3 | CI4 +C | NI3 NH4I +N | I2O4 I2O5 I4O9 | IF IF3 IF5 IF7 | Ne | |||||||||||
| NaI | MgI2 | AlI AlI3 | SiI4 | PI3 P2I4 +P PI5 | S2I2 | ICl ICl3 | Ar | |||||||||||
| KI | CaI2 | ScI3 | TiI2 TiI3 TiI4 | VI2 VI3 | CrI2 CrI3 | MnI2 | FeI2 FeI3 | CoI2 | NiI2 -Ni | CuI | ZnI2 | GaI GaI3 | GeI2 GeI4 +Ge | AsI3 As2I4 +As | Se | IBr IBr3 | Kr | |
| RbI RbI3 | SrI2 | YI3 | ZrI2 ZrI3 ZrI4 | NbI4 NbI5 | MoI2 MoI3 | TcI3 | RuI3 | RhI3 | PdI2 | AgI | CdI2 | InI InI3 | SnI2 SnI4 | SbI3 +Sb | TeI4 +Te | I− I− 3 | Xe | |
| CsI CsI3 | BaI2 | LuI3 | HfI3 HfI4 | TaI4 TaI5 | WI2 WI3 WI4 | ReI3 ReI 4 | OsI OsI2 OsI3 | IrI3 IrI 4 | PtI2 PtI4 | AuI AuI3 | Hg2I2 HgI2 | TlI TlI3 | PbI2 | BiI3 | PoI2 PoI4 | AtI | Rn | |
| Fr | RaI2 | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
| ↓ | ||||||||||||||||||
| LaI2 LaI3 | CeI2 CeI3 | PrI2 PrI3 | NdI2 NdI3 | PmI3 | SmI2 SmI3 | EuI2 EuI3 | GdI2 GdI3 | TbI3 | DyI2 DyI 3 | HoI3 | ErI3 | TmI2 TmI3 | YbI2 YbI3 | |||||
| AcI3 | ThI2 ThI3 ThI4 | PaI4 PaI5 | UI3 UI4 | NpI3 | PuI3 | AmI2 AmI3 | CmI3 | BkI 3 | CfI 2 CfI 3 | EsI2 EsI3 | Fm | Md | No | |||||
