Rhodium acetylacetonate

Rhodium acetylacetonate

Names
IUPAC name (E)-4-hydroxypent-3-en-2-one;rhodium
Other names Rhodium(III) acetylacetonate
Identifiers
CAS Number	14284-92-5
3D model (JSmol)	coordination form: Interactive image ionic form: Interactive image
ECHA InfoCard	100.034.704
EC Number	238-192-5
PubChem CID	73187452
CompTox Dashboard (EPA)	DTXSID50931658
InChI InChI=1S/3C5H8O2.Rh/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/b3*4-3+; Key: MBVAQOHBPXKYMF-MUCWUPSWSA-N
SMILES coordination form:CC(=C[C-](C)O1)O[Rh+3]123(OC(=C[C-](C)O2)C)OC(=C[C-](C)O3)C ionic form:CC(=O)C=C(C)[O-].CC(=O)C=C(C)[O-].CC(=O)C=C(C)[O-].[Rh+3]
Properties
Chemical formula	C15H21O6Rh
Molar mass	400.232 g·mol−1
Appearance	orange solid
Melting point	260 °C (500 °F; 533 K) (decomposes)
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H315, H319, H332, H335, H361
Precautionary statements	P201, P202, P261, P264, P270, P271, P280, P281, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P308+P313, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, 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

Rhodium acetylacetonate is the coordination complex with the formula Rh(C₅H₇O₂)₃, which is sometimes known as Rh(acac)₃. The molecule has D₃-symmetry. It is a yellow-orange solid that is soluble in organic solvents.

It is prepared from RhCl₃(H₂O)₃ and acetylacetone. ^[1] The complex has been resolved into individual enantiomers by separation of its adduct with dibenzoyltartaric acid. ^[2]

Related compounds

• Dicarbonyl(acetylacetonato)rhodium(I), Rh(C₅H₇O₂)(CO)₂
• Iridium acetylacetonate, Ir(C₅H₇O₂)₃

References

1. James E. Collins, Michael P. Castellani, Arnold L. Rheingold, Edward J. Miller, William E. Geiger, Anne L. Rieger, Philip H. Rieger "Synthesis, Characterization, and Molecular Structure of Bis(tetraphenylcyclopentdienyl)rhodium(II)" Organometallics 1995, pp 1232–1238. doi : 10.1021/om00003a025
2. Drake, A. F.; Gould, J. M.; Mason, S. F.; Rosini, C.; Woodley, F. J. (1983). "The optical resolution of tris(pentane-2,4-dionato)metal(III) complexes". Polyhedron. 2 (6): 537–538. doi:10.1016/S0277-5387(00)87108-9.