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Pentaamminechlororhodium dichloride

Pentaamminechlororhodium dichloride
Other names
Pentaamminechlororhodium dichloride, chloropentaamminerhodium dichloride, chloropentaamminerhodium chloride, chloropentamminerhodium(III) dichloride, chloropentamminerhodium(III) chloride
3D model (JSmol)
ECHA InfoCard 100.034.082
Appearance yellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Pentamminechlororhodium dichloride is the inorganic compound with the formula [RhCl(NH3)5]Cl2. This yellow solid 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.[1] It forms from the reaction of rhodium trichloride and ammonia in ethanol.[2] Two chloride anions are labile, whereas the coordinated chloride ligand is not.


  1. ^ Hambley, Trevor W.; Lay, Peter A. (1986). "Comparisons of π-bonding and hydrogen bonding in isomorphous compounds: [M(NH3)5Cl]Cl2 (M = Cr, Co, Rh, Ir, Ru, Os)". Inorganic Chemistry. 25: 4553–8. doi:10.1021/ic00245a020.CS1 maint: uses authors parameter (link)
  2. ^ J. A. Osborn, K. Thomas, G. Wilkinson. "Pentaamminechlororhodium(III) Dichloride and Pentaamminehydridorhodium(III) Sulfate". Inorg. Synth. 13: 213–215. doi:10.1002/9780470132449.ch43.CS1 maint: uses authors parameter (link)