STRUCTURE OF ERROCENYL-1,3-BUTANEDIONATO-KAPPA-2O,O')RHODIUM(I)

[Rh(C14H13FeO2)(C8H12)], M(r) = 480.2, triclinic, P1BAR, a = 11.658 (1 ), b = 13.001 (1), c = 15.251 (2) angstrom, alpha = 70.621 (8), beta = 68.538 (8), gamma = 66.049 (7)degrees, V = 1919.8 (3) angstrom3, Z = 4, D(m) = 1.63, D(x) = 1.66 g cm-3, lambda(Mo Kalpha) = 0.71073 angstr om, mu = 16.15 cm-1, T = 295K, F(000) = 976, final R = 0.0419 for 8290 observed reflections. Two crystallographically independent molecules A and B are present in the unit cell. Both molecules have an approxima tely square-planar configuration about the Rh atom, but only the cyclo pentadienyl (Cp) rings of B approach an eclipsed conformation. The O-R h-O plane does not pass through the middle of the C=C bonds of the boa t-like 1,5-cyclooctadiene (cod) ligand.