Carbonylbis(triphenylphosphine)rhodium(I) chloride

• CAT Number: M065944
• CAS Number: 13938-94-8
• Molecular Formula: C37H30ClOP2Rh
• Molecular Weight: 690.94
• Purity: ≥95%
• Storage: -20°C
• IUPAC Name: carbon monoxide;rhodium;triphenylphosphane;chloride
• InChI: InChI=1S/2C18H15P.CO.ClH.Rh/c2*1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-2;;/h2*1-15H;;1H;/p-1
• InChIKey: RMJBMLFXJWHQJH-UHFFFAOYSA-M
• SMILES: [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.[Cl-].[Rh]

Carbonylbis(triphenylphosphine)rhodium(I) chloride(CAT: M065944), with the formula [RhCl(CO)(PPh₃)₂], is a well-defined rhodium(I) complex widely used in homogeneous catalysis. Featuring a square planar geometry, the complex includes one carbonyl ligand, two triphenylphosphine ligands, and a chloride ion coordinated to a rhodium center. It is especially valued for its role in hydroformylation, hydrogenation, and carbon–carbon coupling reactions. The presence of both CO and phosphine ligands offers tunable electronic properties, making it a versatile precatalyst in organic synthesis.