112220-75-4Relevant articles and documents
Organolithium reagents in metal carbonyl reduction reactions. Syntheses of HFe3(μ2-COMe)(CO)10, Fe3(μ3-COMe)2(CO)9, and Fe3(μ3-C=CH2)(CO)10
Aradi, Allen A.,Grevels, Friedrich-Wilhelm,Krüger, Carl,Raabe, Eleonore
, p. 812 - 818 (2008/10/08)
n-Butyllithium reduces the Fe3(CO)12 cluster, and on subsequent treatment with Me3OBF4 the compounds HFe3(μ2-COMe)(CO)10 (2), Fe3(μ3-COMe)2(CO)9 (3), and Fe3(μ3-C=CH2)(CO)10 (1) are formed. Similar reductions are possible with t-BuLi and PhLi. Compound 2 is thus obtained more simply and less dangerously than in a previously published procedure. Complex 3 is the first example where two μ3-methylidyne methyl ether groups are symmetrically bound to a trinuclear cluster. Synthesis of 3 from 2 is also demonstrated. Similarly, compound 3 can be converted to 1. The photochemical reactivity of 1 with H2 and with (E)-cyclooctene is described. Compounds 1 and 3 have been characterized by an X-ray structure analysis. (1: C12H2O10Fe3, orthorhombic, space group Pna21, a = 21.129 (2) A?, b = 9.079 (1) A?, c = 8.599 (1) A?, Z = 4. 3: C13H6O11Fe3, monoclinic, space group P21/n, a = 8.606 (1) A?, b = 13.955 (2) A?, c = 14.899 (1) A?, β = 92.117 (9)°, Z = 4.)
