Dicarbonyl(acetylacetonato)rhodium(I) is an organorhodium compound with the formula Rh(O₂C₅H₇)(CO)₂. The compound consists of two CO

ligand In coordination chemistry, a ligand is an ion or molecule with a functional group that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's el ...

s and an acetylacetonate. It is a dark green solid that dissolves in

acetone Acetone (2-propanone or dimethyl ketone) is an organic compound with the chemical formula, formula . It is the simplest and smallest ketone (). It is a colorless, highly Volatile organic compound, volatile, and flammable liquid with a charact ...

and

benzene Benzene is an Organic compound, organic chemical compound with the Chemical formula#Molecular formula, molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar hexagonal Ring (chemistry), ring with one hyd ...

, giving yellow solutions. The compound is used as a precursor to homogeneous catalysts. It is prepared by treating rhodium carbonyl chloride with sodium acetylacetonate in the presence of base: : CO)₂RhClsub>2 + 2 NaO₂C₅H₇ → 2 Rh(O₂C₅H₇)(CO)₂ + 2 NaCl The complex adopts

square planar molecular geometry In chemistry, the square planar molecular geometry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds. As the name suggests, molecules of this geometry have their atoms positioned at the co ...

. The molecules stack with Rh---Rh distances of about 326 pm. As such, it is representative of a linear chain compound. ACABRH02

References

{{Acetylacetonate complexes Organorhodium compounds Homogeneous catalysis Carbonyl complexes Acetylacetonate complexes Rhodium(I) compounds