CRYSTAL-STRUCTURE OF CARBONYL(2,4-PENTANEDIONATO) (PHENYLDI-2-PYRIDYLPHOSPHINE)RHODIUM(I), [RH(ACAC)(CO)(PPHPYL(2))]

The structure of the title compound, C22H20N2O3PRh, was determined by the single-crystal X-ray structure analysis. The crystals are triclini c, space group P1, M(r) = 494.29, D-x = 1.520 Mgm(-3), a = 8.848(2), b = 10.884(2), c = 12.839(3) Angstrom, alpha = 108.01(3), beta = 105.31 (3), gamma = 101.47(3)degrees. The data were collected on a P3 diffrac tometer with MoK alpha radiation at 293 K. The structure was solved by direct methods and refined by anisotropic full-matrix least squares t o the final R = 0.034, R(w) = 0.037, S = 2.1127, w = 1/[sigma(2)(F)) 0.00024F(2)] for 4830 observed reflections with F > 4 sigma(F) (out o f 4994 independent). Rhodium atom shows a square-planar coordination. The 2,4-pentanedionato ligand is planar and almost coplanar with coord ination plane.