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- W2037090331 abstract "Abstract Nonacarbonylbis(μ3-fluoromethylidyne)triiron, Fe3(CO)9(μ3-CF)2, and tetrafluoroferrole, (CO)3(Fe FeCFCFCFC F(CO)3, are obtained by the reaction of Fe(CO)5 with CFBr3. Fe3(CO)9(μ3-CF)2 was found to be a versatile starting material for the synthesis of other new clusters. Clusters containing a diferra-allyligand are formed by regioselective attack of alkynes on one μ3-CF ligand of Fe3(CO)9(μ3-CF)2 from the sterically less-hindered side. Replacement of fluorine by chlorine in Fe3(CO)9(μ3-CF)2 using aluminium chloride yields nonacarbonylbis(μ3-chloromethylidyne)triiron at ambient temperature. At elevated temperature or with aluminium bromide further attack of the cluster and substitution of three carbonyl ligands by benzene occurs, forming a cationic cluster, which reacts with nucleophiles such as alcohols, forming Fe3(CO)6(η6-C6H6)(μ3-CX)(μ3-CCOOR). The reaction of Fe3(CO)9(μ3-CF)2 with the phosphaalkyne t-C4H6CP results in the formation of a pentagonal bipyramidal cluster Fe2(CO)8[ FeCFC(C 4 H 9 )PC F], that contains a perfect planar FeCPCC five-membered ring system. In the cluster expansion reaction of Fe3(CO)9(μ3-CF)2 with Cp*Co(CO)2, carboncarbond bond formation with formation of a coordinated difluoroethyne ligand occurs. To our knowledge Cp*CoFe3(CO)9(μ4-η2-FCCF) is the first example of a coordinated difluoroethyne ligand." @default.
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- W2037090331 date "1989-08-01" @default.
- W2037090331 modified "2023-10-16" @default.
- W2037090331 title "Clusters containing fluorocarbons" @default.
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- W2037090331 doi "https://doi.org/10.1016/0022-328x(89)87081-0" @default.
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