The title compound, [Rh(C37H30P3O3)(C21H21P)(CO)], has approximate squ
are-planar coordination geometry around the Rh atom. The significant d
ifference [0.012 (3) Angstrom] in the Rh-O bond lengths is due to the
slightly different trans influence of P(o-Tol)(3) and CO. This suggest
s that the longer Rh-O bond [trans to P(o-Tol)(3)] will be preferentia
lly substituted during intramolecular fluxional coordination behaviour
of the tripodal ligand.