• Source: Ruthenium(III) iodide

Ruthenium(III) iodide is a chemical compound containing ruthenium and iodine with the formula RuI3. It is a black solid.




Preparation


Ruthenium(III) iodide can be prepared in several ways.
The reaction of ruthenium tetroxide with aqueous hydroiodic acid:

RuO4 + excess HI → RuI3
The thermal decomposition of pentaammineruthenium(III) iodide:

Ru(NH3)5I3 → RuI3 + 5 NH3
The salt metathesis reaction of hydrated ruthenium(III) chloride with potassium iodide in aqueous solution:

RuCl3·xH2O + 3 KI → RuI3 + 3 KCl + xH2O
Direct combination of the elements has been reported to succeed under some conditions (350 °C) but not others (500 °C and 20 atm):

2 Ru + 3 I2 → 2 RuI3




Structure


Ruthenium(III) iodide adopts an extended structure with octahedral coordination geometry at ruthenium. There is some doubt about the characterisation of ruthenium(III) iodide and it may be an oxohalide or a hydroxyhalide.




References

Kata Kunci Pencarian:

• Arsen
• Fosforus
• Iodin
• Talium
• Uranium
• Vanadium
• Erbium
• Iterbium
• Kamus rumus kimia
• Teknesium
• Ruthenium(III) iodide
• Ruthenium(III) fluoride
• List of CAS numbers by chemical compound
• Cativa process
• Iridium(III) bromide
• Molybdenum(III) bromide
• List of inorganic compounds
• Iodine
• Staining
• Period 5 element