Tricarbonyl[(2,3,6,7-[eta])-2,3-dimethylene-2,3-dihydrofuran]iron(0) at 120K

The Fe atom is coordinated to the exocyclic double bonds of the organic ligand and the carbonyl groups in a pentagonal fashion, with the carbonyl groups in a piano-chair conformation. The Fe-C distances correspond generally to those of the butadiene analogue [Mills & Robinson (1963). Acta Cryst. 16, 758-761].

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