title: (2-Bromo-acet-yl)ferrocene.
abstract: In the title mol-ecule, [Fe(C(5)H(5))(C(7)H(6)BrO)], the C atoms of the substituted ring have disparate Fe-C bond lengths compared with the unsubstituted ring. In the bromo-acetyl residue, the Br and O atoms are co-planar [the O-C-C-Br torsion angle is 5.7 (4)°] and are syn to each other. Helical supra-molecular chains along the b axis are formed in the crystal structure mediated by C-H⋯O contacts; the carbonyl-O atom is bifurcated. The chains are linked into layers by C-H⋯π(unsubstituted ring) inter-actions that stack along the a-axis direction.
authors.forename: Xiang-Xiang
authors.initials: XX
authors.lastname: Wu
authors.forename: Xin
authors.initials: X
authors.lastname: Zhu
authors.forename: Qiu-Juan
authors.initials: QJ
authors.lastname: Ma
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink