title: Acetyl-ferrocene-2-chloro-1-ferrocenyl-ethanone (1/1).
abstract: In the title co-crystal, [Fe(C(5)H(5))(C(7)H(6)ClO)][Fe(C(5)H(5))(C(7)H(7)O)], both substituted ferrocene mol-ecules show the expected sandwich structure. The crystal packing exhibits weak inter-molecular Cl⋯Cl contacts of 3.279 (4) Å, π-π inter-actions between the substituted Cp rings of two neighbouring 2-chloro-1-ferrocenyl-ethanone mol-ecules [centroid-centroid distance = 3.534 (3) Å], and weak inter-molecular C-H⋯O and C-H⋯Cl hydrogen bonds.
authors: Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, Pardubice 532 10,  Czech Republic.
authors: Milan
authors: M
authors: Erben
authors: Jaromír
authors: J
authors: Vinklárek
authors: Aleš
authors: A
authors: Růžička