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Chemical compound From Wikipedia, the free encyclopedia
Rhodium(III) fluoride or rhodium trifluoride is the inorganic compound with the formula RhF3. It is a red-brown, diamagnetic solid.
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| Names | |
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| IUPAC name
Rhodium(III) fluoride | |
| Other names
Rhodium trifluoride | |
| Identifiers | |
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| ChemSpider | |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| RhF3 | |
| Molar mass | 159.90070 g·mol−1 |
| Appearance | red-brown solid |
| Density | 5.38 g/cm3[1] |
| Structure | |
| Trigonal | |
| R3c | |
Formula units (Z) |
6 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The compound is prepared by fluorination of rhodium trichloride:
It can also be obtained by direct combination of the elements:[3]
Anhydrous RhF3 is insoluble in water and does not react with it, but the hydrates RhF3·6H2O and RhF3·9H2O can be prepared by adding hydrofluoric acid to aqueous rhodium(III) solutions.[3]
According to X-ray crystallography, the compound adopts the same structure as vanadium trifluoride, wherein the metal achieves octahedral coordination geometry.[2]
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