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metal-organic compounds
Undecacarbonyl[4(η5)-cyclopentadienyl]-μ3-(4,4,4-trifluorobutaneheptayl)-tetrairon(3 Fe—Fe), [{Fe(CO)3}3{μ3-CC[Fe(CO)2Cp]C(CF3)}] (Cp is η5-C5H5) contains a triangular {Fe(CO)3}3 core [Fe—Fe distances 2.482 (1), 2.663 (1) and 2.693 (1) Å] linked via an unusual C3CF3 bridging unit to an Fe(CO)2Cp group.