(Z)-1-Ferrocenyl-3-(3-hydroxyanilino)but-2-en-1-one and (Z)-1-ferrocenyl-3-(4-hydroxyanilino)but-2-en-1-one.

The title compounds, both [Fe(C5H5)(C15H14NO2)], crystallize with Z'=2 in the centrosymmetric space group P-1. In each compound, there is an intramolecular N-H...O=C hydrogen bond, and pairs of intermolecular O-H...O=C hydrogen bonds link the molecules into chains, parallel to [110] in the 3-hydroxy compound and parallel to [101] in the 4-hydroxy compound.