Abstract
In the title co-crystal, [Fe(C5H5)(C7H6ClO)][Fe(C5H5)(C7H7O)], both substituted ferrocene molecules show the expected sandwich structure. The crystal packing exhibits weak intermolecular Cl⋯Cl contacts of 3.279 (4) Å, π–π interactions between the substituted Cp rings of two neighbouring 2-chloro-1-ferrocenylethanone molecules [centroid–centroid distance = 3.534 (3) Å], and weak intermolecular C—H⋯O and C—H⋯Cl hydrogen bonds.
Highlights
In the title co-crystal, [Fe(C5H5)(C7H6ClO)][Fe(C5H5)(C7H7O)], both substituted ferrocene molecules show the expected sandwich structure
Cg1, Cg2, Cg3 and Cg4 are the centroids of the C1–C5, C8–C12, C13–C17 and C20–C24 rings, respectively
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CV5144)
Summary
Key indicators: single-crystal X-ray study; T = 150 K; mean (C–C) = 0.008 A; R factor = 0.059; wR factor = 0.151; data-to-parameter ratio = 17.2. In the title co-crystal, [Fe(C5H5)(C7H6ClO)][Fe(C5H5)(C7H7O)], both substituted ferrocene molecules show the expected sandwich structure. The crystal packing exhibits weak intermolecular ClÁ Á ÁCl contacts of 3.279 (4) A , – interactions between the substituted Cp rings of two neighbouring 2-chloro-1-ferrocenylethanone molecules [centroid–centroid distance = 3.534 (3) A ], and weak intermolecular C—HÁ Á ÁO and C—HÁ Á ÁCl hydrogen bonds. For the crystal structures of ferrocenyl complexes of the type [FeCp(C5H4COR)], where Cp is 5-C5H5 and R is CH3 or CH2I, see: Sato et al (1984); Khrustalev et al (2006); McAdam et al (2006). For the use of acylferrocenes as catalysts for the autoxidation of alkyd resins, see: Stava et al (2007); Kalenda et al (2010)
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