STRUCTURE OF TETRAPHENYLPHOSPHONIUM MU-([ETA(4)-2,4-BIS(2-HYDROXY-2-METHYLPROPANAMIDO)-2,4-DIMETHYL-3-OXOPENTANE]COBALT(III))TETRANITRATOCERIUM(III) DICHLOROMETHANE

Bis(tetraphenylphosphonium) mu-{N,N'-(2,4-dimethyl-3-oxo-2,4-pentanediyl)bis[(2-hydroxy-1:2kappa2O)-2-methylpropanamido-2kappaN]}-tetranitrato-1kappa4O,1kappa4O'-cerate(III)cobaltate(III) dichloromethane, [P(C6H5)4]2[Co(C15H24N2O5){Ce(NO3)4}].-CH2Cl2, M(r) = 1523.2, monoclinic, P2(1)/c (C2h5), a = 22.168 (5), b = 13.266 (2), c = 24.330 (6) angstrom, beta = 105.17 (2)-degrees, V = 6905 (3) angstrom3, Z = 4, D(x) = 1.465 Mg m-3, lambda(Mo Kalpha) = 0.71073 angstrom, mu = 1.09 mm-1, T = 293 K, F(000) = 3108, R = 0.036, wR = 0.045 for 8166 independent reflections having 2theta(Mo Kalpha) < 50.7-degrees and I > 3sigma(I). The title compound is a dinuclear complex in which a planar cobalt(III) complex is linked via secondary coordination to a cerium(III) center. The Ce(III) atom has four bidentate nitrato ligands and is further bridged to the bidentate planar cobalt(III) complex ligand which is coordinated through two alkoxide O atoms. The cobalt-cerium non-bonded distance is 3.449 (1) angstrom. The cobalt(III) complex ligand remains planar on coordination to the Ce(III) atom.