International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 11(67), p. m1533-m1533, 2011
DOI: 10.1107/s1600536811041924
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The title compound, [Fe(C11H11N2O)2], crystallizes with two independent molecules in the asymmetric unit which have have different conformations. In one molecule, the two ferrocene cyclopentadienyl rings are fully eclipsed and the two pyrazole rings are syn to each other; in the other, the two cyclopentadienyl rings are synclinal and the pyrazole rings are anti. In both molecules, the acetyl group attached to the pyrazole ring is oriented away from the iron–cyclopentadienyl group of ferrocene.