3D model (JSmol)
CompTox Dashboard (EPA)
|GHS Signal word||Warning|
|Rhodium(III) bromide; Rhodium(III) chloride; Rhodium(III) fluoride|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
RhI3 adopts same crystal structure motif as AlCl3 and YCl3. The structure consists of cubic close-packed iodide ions and rhodium ions filling a third of the octahedral interstices, forming a layers.
Rhodium(III) iodide is only known in the anhydrous form. It does not form hydrates. The related anion [RhI6]3- was previously thought not to form but has since been prepared by diffusion of RhCl3·3H2O through a layer of hydroiodic acid into piperazine.