Atomfair (Acetylacetonato)dicarbonylrhodium(I) Rh(CO)2acac, Rh(acac)(CO)2 C7H8O4Rh CAS 14874-82-9

Description

(Acetylacetonato)dicarbonylrhodium(I) (CAS: 14874-82-9) is a highly specialized organometallic compound with the molecular formula C₇H₈O₄Rh. This air-sensitive, yellow crystalline solid is widely utilized in homogeneous catalysis and organic synthesis due to its unique reactivity as a rhodium(I) precursor. The compound features an acetylacetonate (acac) ligand alongside two carbonyl groups, offering excellent stability while maintaining catalytic activity. It is particularly valued for hydroformylation, hydrogenation, and carbonylation reactions in pharmaceutical and fine chemical industries. Supplied in high purity (typically ≥95%), this reagent should be stored under inert atmosphere at low temperatures to prevent decomposition. Available in research quantities (mg to kg scale) with custom packaging options.

Properties

• CAS Number: 14874-82-9
• Complexity: 117
• IUPAC Name: carbon monoxide;(Z)-4-hydroxypent-3-en-2-one;rhodium
• InChI: InChI=1S/C5H8O2.2CO.Rh/c1-4(6)3-5(2)7;2*1-2;/h3,6H,1-2H3;;;/b4-3-;;;
• InChI Key: GGRQQHADVSXBQN-FGSKAQBVSA-N
• Exact Mass: 258.94775
• Molecular Formula: C7H8O4Rh
• Molecular Weight: 259.04
• SMILES: C/C(=C/C(=O)C)/O.[C-]#[O+].[C-]#[O+].[Rh]
• Topological: 39.3
• Monoisotopic Mass: 258.94775
• Synonyms: Rh(CO)2acac, Acetylacetonatodicarbonylrhodium, Dicarbonylacetylacetonatorhodium, Acetylacetonatorhodium dicarbonyl, Rhodium dicarbonylacetylacetonate, (Acetylacetonato)dicarbonyl rhodium, Dicarbonylacetylacetonato-rhodium(I), Rhodium(I) dicarbonyl acetylacetonate, Dicarbonyl(2,4-pentanedionato)rhodium, Dicarbonylrhodium(I) 2,4-pentanedionate, Rhodium, dicarbonyl(2,4-pentanedionato-O,O’)-, EINECS 238-947-9, (acetylacetonato)dicarbonylrhodium(i), 14874-82-9, bzcawkopwnidoc-fgskaqbvsa-m, rhodium, dicarbonyl(2,4-pentanedionato)-, rhodium, dicarbonyl(2,4-pentanedionato-o,o’)-, (sp-4-2)-, Rh(acac)(CO)2, acetylacetonato dicarbonylrhodium, AC1284, AKOS025311017, DICARBONYL(2,4-PENTANEDIONATO)RHODIUM(I)

This rhodium complex serves as a versatile catalyst precursor for carbonylation and hydroformylation reactions in organic synthesis. Researchers employ it in asymmetric hydrogenation processes to produce chiral intermediates for pharmaceuticals. The compound also finds use in mechanistic studies of Rh(I) catalytic cycles due to its well-defined coordination geometry. Its stability makes it suitable for controlled-release Rh sources in specialized catalytic applications.

Safety and Hazards

GHS Hazard Statements

• H228 (80.9%): Flammable solid [Danger Flammable solids]
• H301 (99.1%): Toxic if swallowed [Danger Acute toxicity, oral]
• H315 (19.1%): Causes skin irritation [Warning Skin corrosion/irritation]
• H317 (97.4%): May cause an allergic skin reaction [Warning Sensitization, Skin]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (19.1%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H411 (11.3%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
• H412 (69.6%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P210, P240, P241, P261, P264, P264+P265, P270, P271, P272, P273, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P370+P378, P391, P403+P233, P405, and P501

Hazard Classes and Categories

• Flam. Sol. 2 (80.9%)
• Acute Tox. 3 (99.1%)
• Skin Irrit. 2 (19.1%)
• Skin Sens. 1 (97.4%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (19.1%)
• Aquatic Chronic 2 (11.3%)
• Aquatic Chronic 3 (69.6%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.