(Acetyl-acetonato-κ ² O,O′)[(2-bromo-phenyl)diphenyl- phosphane-κP]carbonyl-rhodium(I)

In the title compound, [Rh(C ₅H ₇O ₂)(C ₁₈H ₁₄BrP)(CO)], the Rh ^I atom adopts a slightly distorted square-planar geometry involving two O atoms [Rh-O = 2.077 (2) and 2.033 (2) Å] of the acetyl-acetonate ligand, one carbonyl C atom [Rh-C = 1.813 (2) Å] and one P atom [Rh-P = 2.242 (5) Å] of the PPh ₂(2-BrC ₆H ₄) phosphane ligand. Difference electron density maps indicate a disorder of the Br atom over two positions in an approximate 0.95:0.05 ratio. However, this disorder could not be resolved satisfactorily with the present data.