Description

Tristriphenylphosphine rhodium carbonyl hydride (CAS: 17185-29-4) is a highly specialized organometallic compound with the molecular formula C₅₅H₄₆OP₃Rh^–. This complex features a rhodium center coordinated to three triphenylphosphine ligands, a carbonyl group, and a hydride, making it an invaluable catalyst in organic synthesis and homogeneous catalysis. Its unique structure enables selective hydrogenation, hydroformylation, and carbonylation reactions under mild conditions. The compound is supplied as a fine powder or crystalline solid, ensuring high purity (>98%) for precise experimental reproducibility. Store under inert atmosphere (argon/nitrogen) at 2-8°C to maintain stability.

Properties

• CAS Number: 17185-29-4
• Complexity: 212
• IUPAC Name: carbon monoxide;hydride;rhodium;triphenylphosphane
• InChI: InChI=1S/3C18H15P.CO.Rh.H/c3*1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-2;;/h3*1-15H;;;/q;;;;;-1
• InChI Key: LNIBUINQDXTYPF-UHFFFAOYSA-N
• Exact Mass: 918.18165
• Molecular Formula: C55H46OP3Rh-
• Molecular Weight: 918.8
• SMILES: [H-].[C-]#[O+].C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.[Rh]
• Topological: 1
• Monoisotopic Mass: 918.18165
• Physical Description: Other Solid
• Synonyms: Tristriphenylphosphine rhodium carbonyl hydride, Carbonylhydrotris(triphenylphosphine)rhodium, 720P7594ZM, 17185-29-4, EINECS 241-230-3, Rhodium, carbonylhydrotris(triphenylphosphine)-, (TB-5-23)-, TRIS(TRIPHENYLPHOSPHINE)RHODIUMCARBONYLHYDRIDE, trans-Carbonyl(hydrido)tris(triphenylphosphine)rhodium, TRANS-HYDRIDOCARBONYLTRIS(TRIPHENYLPHOSPHINE)RHODIUM, TRISTRIPHENYLPHOSPHINE RHODIUM CARBONYL HYDRIDE [MI], DTXSID40904295, DTXCID801782196, INNJHNPAMJYUKT-UHFFFAOYSA-N

This rhodium complex is widely employed as a catalyst in asymmetric hydrogenation reactions for pharmaceutical intermediates and fine chemicals. It facilitates C-C and C-X bond formations in cross-coupling reactions with exceptional stereoselectivity. Researchers utilize it in decarbonylation studies and as a precursor for other rhodium-based catalysts. Its reactivity profile makes it ideal for mechanistic investigations in organometallic chemistry.

Safety and Hazards

GHS Hazard Statements

• H301 (56.5%): Toxic if swallowed [Danger Acute toxicity, oral]
• H311 (56.5%): Toxic in contact with skin [Danger Acute toxicity, dermal]
• H331 (56.5%): Toxic if inhaled [Danger Acute toxicity, inhalation]
• H413 (36.2%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P261, P262, P264, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P316, P321, P330, P361+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 3 (56.5%)
• Acute Tox. 3 (56.5%)
• Acute Tox. 3 (56.5%)
• Aquatic Chronic 4 (36.2%)

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