Abstract

Through the reaction of Fe2(SO4)3/HOAc aqueous solution with sodium η5-substituted or un-substituted cyclopentadienyltricarbonylmolybdenate(tungstate) salts Na[M(ηS-C5H4R)(CO)3], eight bis(η5-substituted or unsubstituted cyclopentadienyl) hexacarbonvldimolybdenum (tungsten) complexes [(η5-C5H4R)(CO)3M]2 (M ˭ Mo, R ˭ H (1), COH (2), COC6H5 (3), COC6H4COOCH3 (4); M ˭ W, R ˭ H (5), COH (6), COC6H5 (7), COC6H4COOCH3 (8)) were prepared and characterized by analysis, IR and 1H NMR spectra. The molecular structure of complex (3) was determined by single-crystal X-ray methods.

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