- Source: Pentaamminechlororhodium dichloride
Pentamminechlororhodium dichloride is the dichloride salt of the coordination complex [RhCl(NH3)5]2+. It is a yellow, water-soluble solid. The salt is an intermediate in the purification of rhodium from its ores.
As shown by X-ray crystallography, the salt consists of the octahedral complex [RhCl(NH3)5]2+ and two chloride counterions. It forms from the reaction of rhodium trichloride and ammonia in ethanol. Two chloride anions are labile, whereas the coordinated chloride ligand is not.
Treatment of [RhCl(NH3)5]Cl2 with zinc dust in the presence of ammonia gives the hydride complex [RhH(NH3)5]2+.
Related compounds
Chloropentamminecobalt chloride
Chloropentammineiridium chloride