Date Published: April 01, 2012
Publisher: International Union of Crystallography
Author(s): Wade L. Davis, Reinout Meijboom.
In the title compound, [Rh(C5H7O2)(C18H14BrP)(CO)], the RhI atom adopts a slightly distorted square-planar geometry involving two O atoms [Rh—O = 2.077 (2) and 2.033 (2) Å] of the acetylacetonate ligand, one carbonyl C atom [Rh—C = 1.813 (2) Å] and one P atom [Rh—P = 2.242 (5) Å] of the PPh2(2-BrC6H4) 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.
For background to the catalytic activity of rhodium–phosphane compounds, see: Bonati & Wilkinson (1964 ▶); Moloy & Wegman (1989 ▶); Carraz et al. (2000 ▶). For related rhodium structures, see: Brink et al. (2007 ▶); Coetzee et al. (2007 ▶).