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The title compound, [2(1,2,3,3a,6a-η)-1,4-dihydropentalenyl][μ-(1,2,3,3a,6a-η : 3a,4,5,6,6a-η)pentalene][1(η5)-pentamethylcyclopentadien]diiron, [Fe2(C8H7)(C10H15)(C8H6)], has a metallocenic structure with the two pentalene ligands adopting an eclipsed conformation. In the central pentalene ligand, all the peripheral bonds are of similar length whereas the bridge bond is longer; there are two significantly different Fe—C distances, i.e. a mean value of 2.121 (3) Å for the Fe—Cbridge distances and a mean value of 2.028 (3) Å for the distances from the Fe atoms to all other C atoms. In the terminal pentalene ligand, the C—C and C—Fe distances in the ring bonded to the Fe atom are all similar.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock fefe

fcf

Structure factor file (CIF format)
Contains datablock fefe

CCDC reference: 128164

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