title: Monoclinic form of (Z)-1-ferrocenyl-3-(3-hy-droxy-anilino)but-2-en-1-one.
abstract: The title compound, [Fe(C(5)H(5))(C(15)H(14)NO(2))], is a monoclinic polymorph of the previously reported triclinic form [Shi et al. (2006 ▶). Acta Cryst. C62, m407-m410]. The polymorphs feature the same strong intra-molecular N-H⋯O=C hydrogen bonds, but show different packing modes. The mol-ecules in the monoclinic form associate into double chains via O-H⋯O=C and (Cp)C-H⋯O-H inter-actions.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhou
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Ji
authors.forename: Yao-Cheng
authors.initials: YC
authors.lastname: Shi
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Shen
authors.forename: Li-Min
authors.initials: LM
authors.lastname: Yuan