2-(4-Bromobenzoyl)-1-ferrocenylspiro[11H-pyrrolidizine-3,11′-indeno[1,2-b]quinoxaline]

Abstract

In the title compound, [Fe(C5H5)(C33H25BrN3O)], the fused four-ring system, 11H-indeno[1,2-b]quinoxaline is essentially planar, with a maximum deviation of 0.087 (3) Å from the least-squares plane of the attached benzene ring. The pyrrolidine rings adopt envelope conformation and make a dihedral angle of 51.76 (19)° with each other. The cyclopentadiene rings of the ferrocenyl moiety have an eclipsed conformation. The Br atom deviates by 0.0190 (9) Å from the attached benzene ring. The molecular structure features an intramolecular C—H...N interaction, which generates an S(8) ring motif. The crystal packing features C—H...O interactions, which generate R22(18) centrosymmetric dimers, as well as C—H...π interactions.