Pentaamminechlororhodium dichloride
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Other names Claus' salt, Pentaamminechlororhodium dichloride, chloropentaamminerhodium dichloride, chloropentaamminerhodium chloride, chloropentamminerhodium(III) dichloride, chloropentamminerhodium(III) chloride | |
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ECHA InfoCard | 100.034.082 ![]() |
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Properties | |
Chemical formula | [RhCl(NH3)5]Cl2 |
Appearance | yellow solid |
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Hazard statements | H315, H319, H335 |
Precautionary statements | P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Chemical compound
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.[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.
Treatment of [RhCl(NH3)5]Cl2 with zinc dust in the presence of ammonia gives the hydride complex [RhH(NH3)5]2+.[2][3]
Related compounds
- Chloropentamminecobalt chloride
References
- ^ Hambley, Trevor W.; Lay, Peter A. (1986). "Comparisons of pi-Bonding and Hydrogen Bonding in Isomorphous Compounds: [M(NH3)5Cl]Cl2 (M = Cr, Co, Rh, Ir, Ru, Os)". Inorganic Chemistry. 25 (25): 4553–4558. doi:10.1021/ic00245a020.
- ^ a b Osborn, J. A.; Thomas, K.; Wilkinson, G. (1972). "Pentaamminechlororhodium(III) Dichloride and Pentaamminehydridorhodium(III) Sulfate". Inorganic Syntheses. 13: 213–215. doi:10.1002/9780470132449.ch43.
- ^ Thomas, K.; Osborn, J. A.; Powell, A. R.; Wilkinson, G. (1968). "The Preparation of Hydridopentammine- and Hydridoaquotetramminerhodium(III) Sulphates and Other Salts; the Formation of Alkyl and Fluoroalkyl Derivatives". Journal of the Chemical Society A: 1801. doi:10.1039/j19680001801.
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Rhodium compounds
Organorhodium(0) compounds |
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- RhCl(P(C6H5)3)3
Organorhodium(I) compounds |
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- Rh2(CH3CO2)4
Organorhodium(II) compunds |
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- RhBr3
- Rh(C5H5N)4Cl3
- RhCl3
- Rh(ClO4)3
- RhF3
- Rh(OH)3
- RhI3
- Rh(NH3)5ClCl2
- Rh(NO3)3
- Rh2O3
- Rh2S3
- Rh2(SO4)3
- YbRh2Si2
Organorhodium(III) compunds |
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- RhO2
- RhF4
- RhF5
- XeRhF6
- RhF6