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The title compound (molecular formula C 25 H 30 Fe) forms prismatic crystals from hexane which belong to the monoclinic space group P 2 1 / n with lattice constants a 9.486(2), b 12.134(2), c 16.024(2)A, β 93.12(1)°, and Z = 4. The structure was solved by the heavy atom method and refined by full-matrix least squares against 3839 F 2 terms to yield R = 0.08 and R w = 0.12. The Fe to cyclopentadienyl ring-carbon distances range from 1.985(3) to 2.042(4)A. The two cyclopentadienyl rings are eclipsed, they are slightly non-planar, and the angle between their least-squares planes is 12.5°. |
