title: trans-Carbonyl-chloridobis[tris-(4-meth-oxy-phen-yl)phosphane-κP]rhodium(I).
abstract: The title complex, [RhCl(C(21)H(21)O(3)P)(2)(CO)], is a rhodium analogue to Vaska's complex with para-meth-oxy substituents on the six phosphan-yl-aryl units. Two independent mol-ecules 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 Rh(I) atoms exhibit a distorted square-planar geometry. There are a few weak intra-molecular C-H⋯X inter-actions (X = O, Cl). Inter-estingly, no significant inter-molecular inter-actions are found between the two independent mol-ecules.
authors.affiliation: Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300,  South Africa.
authors.forename: Stefan
authors.initials: S
authors.lastname: Warsink
authors.forename: Andreas
authors.initials: A
authors.lastname: Roodt