Reactivity of di- and tri-nuclear anionic iron complexes derived from diphenylacetylene toward electrophiles - Yanez, R.; Ros, J.; Mathieu, R.; Suades, J. (Elsevier)
The anionic complexes [Fe"3(CO)"1"0(μ"2-C(C"6H"5)C(C"6H"5)H]^- (III), [HFe"3(CO)"9(μ"3-C"6H"5)C(C"6H"5)]^- (IV) and [Fe"2(CO)"6(μ"2-CO)(μ"2-C(C"6H"5)C"6H"5)H)]^- (V) reacts with CF"3COOH or the trityl cation to give the known complex Fe"2(CO)"6(C"6H"5)CC(C"6H"5) (I). Complex IV reacts with triethyloxonium tetrafluoroborate at room temperature to give Fe"3(CO)"9(μ"3-C(C"6H"5)C(C"6H"5)) (II). Complexes I and II were also obtained in fair yield by treatment of V and IV, respectively, with AgClO"4. The behaviour of [HFe"3(CO)"9(μ"3-C(CH"3)C(CH"3))]^- (VI) toward the same electrophiles was also examined for comparison and the results suggest that the [HFe"3(CO)"9RCCR]^- anions may be good precursors for the synthesis of Fe"3(CO)"9(RCCR) complexes.
http://linkinghub.elsevier.com/retrieve/pii/0022-328X(86)84010-4
Keywords: V