Structure Reports Online

Volume 65, Part 3 (March 2009)

metal-organic compounds

Acta Cryst. (2009). E65, m332-m333 [ doi:10.1107/S1600536809006278 ]

2-Ferrocenyl-N-(2-ferrocenylbenzoyl)-N-(4-methyl-2-pyridyl)benzamide

J. F. Gallagher, S. Alley and A. J. Lough

Abstract: The title compound, [Fe₂(C₅H₅)₂(C₃₀H₂₂N₂O₂)], a 2:1 product of the reaction of 2-ferrocenylbenzoic acid and 2-amino-4-methylpyridine, forms a twisted molecular structure in the solid state due to steric effects from the two benzene rings ortho-substituted with ferrocenyl and carbonyl-derived groups. A short intramolecular C-H [pi] interaction is observed involving a substituted [eta] ⁵-C₅H₄ ring and an ortho H atom of the benzene ring on the opposite side of the molecule. In the crystal structure, there are no classical hydrogen bonds: interactions comprise a short C₆-H [pi] (C₆) interaction involving substituted benzene rings and two C-HO=C interactions per molecule.