Synthesis and Characterization of the Chiral Skeleton Cluster [η~5-C_5H_4C(O)CH_2CH_2C(O)OCH_3]RuCoW(μ_3-Se)(CO)_8

The chiral cluster [η 5-C 5H 4C(O)CH 2CH 2C(O)OCH 3]RuCoW(μ 3-Se)(CO) 8 (C 18 H 11 O 11 CoRuSeW, M r=826.08) was synthesized by the thermal reaction of the precursor (μ 3-Se)RuCo 2(CO) 9 with the functional substituted cyclopentadienyl tricarbonyl metal complex anion [W(CO) 3(η 5-C 5H 4C(O)CH 2CH 2(O)OCH 3)] - in THF. It was characterized by C/H elemental~ analysis, IR and 1H NMR. The single-crystal X-ray diffraction was carried out to obtain~ the crystal~ data: monoclinic, space group P2 1/c, a=7.725(2), b=21.880(4), c=13\^416(3), β = 91.93(3)°, V=2266.4(8)  3, Z=4, D c=2.421mg/m 3, F(000) = 1544, μ=8\^107 mm -1 , the final R=0.0816 and wR=0.2206 for 3506 observations with (I2σ(I)).