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The title complex, [RhCl(C21H21O3P)2(CO)], is a rhodium analogue to Vaska's complex with para-methoxy substituents on the six phosphanyl–aryl units. Two independent molecules are present in the unit cell, with their metal atoms both located on an inversion centre. This causes the chloride and carbonyl ligands to exhibit a positional disorder in a 0.5:0.5 ratio. The two RhI atoms exhibit a distorted square-planar geometry. There are a few weak intramolecular C—H...X interactions (X = O, Cl). Interestingly, no significant intermolecular interactions are found between the two independent molecules.