SYNTHESIS, CHARACTERIZATION, AND CATALYTIC PROPERTIES OF GP-6 METAL-COMPLEXES OF YLAMINOMETHYL-1',2-BIS(DIPHENYLPHOSPHINO)FERROCENE (FCNPP)- X-RAY CRYSTAL-STRUCTURE OF W(CO)4(ETA-2-FCNPP(O)-P,N)

Reactions of nylphosphino)-1-(N,N-dimethylaminomethyl)ferrocene (FcNPP ) with M(CO)6 (M=Cr, Mo, W) in the presence of TMNO (Trimethylamine ox ide) in a stoichiometric ratio of 1:1.5:3.5 produced a series of Gp 6 metal carbonyl derivatives with a variety of coordination modes: M(CO) 4(eta-FcNPP-PP) (M=Cr, Mo, W), M(CO)5 (eta1-FcNPP-P) (M=Mo, W), M2(CO) 9(eta1,eta2-FcNPP-P,P,N)(M=Cr, MO), M2(CO)10(eta1,eta1-FCNPP-P,P) (M=C r, Mo, W), and W(CO)4(eta2-FcNPP(O)-P,N). All these complexes were cha racterized by microanalytical and spectroscopic techniques. In one cas e, the structure of W(CO)4(eta2-FcNPP(O)-P,N) was determined by X-ray crystallography. Crystals are monoclinic, space group P2(1)/c, with a= 10.147(2), b=19.902(3), c=19.821(4) angstrom, beta=96.88(2)degrees, V= 3974(1) angstrom3, Z=4, and D(calc)=1.64 g cm-3. The geometry around t he central tungsten metal is a distorted octahedron, with the nitrogen and phosphorus atoms being cis to each other. Some of these complexes exhibited catalytic activities in the allylic oxidation and epoxidati on of cholesterly acetate. Other oxidation products were also formed w ith the different chemical yields and product distribution depending u pon the ligand and the central metal.