Rhodium trifluoride

Rhodium trifluoride
Names
	IUPAC name Rhodium(III) fluoride
Identifiers
CAS Number	60804-25-3;
3D model (JSmol)	Interactive image;
ChemSpider	28687977;
PubChem CID	21688473;
CompTox Dashboard (EPA)	DTXSID601336941 DTXSID90578682, DTXSID601336941 ;
	InChI InChI=1S/3FH.Rh/h3*1H;/q;;;+3/p-3 Key: TXUZMGFRPPRPQA-UHFFFAOYSA-K;
	SMILES [F-].[F-].[F-].[Rh+3];
Properties
Chemical formula	RhF3
Molar mass	159.90070 g·mol−1
Appearance	red-brown solid
Density	5.71 g/cm3
Structure
Crystal structure	Trigonal
Space group	R3c
Lattice constant	a = 4.873, c = 13.550
Formula units (Z)	6
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rhodium trifluoride is the inorganic compound with the formula RhF₃. It is a red-brown, diamagnetic solid.

Synthesis and structure

The compound is prepared by fluorination of rhodium trichloride:

2 RhCl₃ + 3 F₂ → 2 RhF₃ + 3 Cl₂

According to X-ray crystallography, the compound adopts the same structure as vanadium trifluoride, wherein the metal achieves octahedral coordination geometry.^[1]

^ ^a ^b L. Grosse, R. Hoppe (1987). "Zur Kenntnis von Sr₂RhF₇. (Mit einer Bemerkung zur Kristallstruktur von RhF₃)". Zeitschrift fuer Anorganische und Allgemeine Chemie. 552: 123-31. doi:10.1002/zaac.19875520914.