title: Crystal structure of 1-ferrocenyl-2-(4-methyl-benzo-yl)spiro-[11H-pyrrolidizine-3,11'-indeno[1,2-b]quinoxaline].
abstract: In the title compound, [Fe(C5H5)(C34H28N3O)], the four-fused-rings system of the 11H-indeno-[1,2-b]quinoxaline unit is approximately planar [maximum deviation = 0.167 (4) Å] and forms a dihedral angle of 37.25 (6)° with the plane of the benzene ring of the methyl-benzoyl group. Both pyrrolidine rings adopt a twist conformation. An intra-molecular C-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds and weak C-H⋯π inter-actions, forming double chains extending parallel to the c axis.
authors.affiliation: Research Department of Physics, S. D. N. B. Vaishnav College for Women, Chromepet, Chennai 600 044, India.
authors.forename: Kuppan
authors.initials: K
authors.lastname: Chandralekha
authors.affiliation: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Deivasigamani
authors.initials: D
authors.lastname: Gavaskar
authors.affiliation: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Adukamparai Rajukrishnan
authors.initials: AR
authors.lastname: Sureshbabu
authors.affiliation: Research Department of Physics, S. D. N. B. Vaishnav College for Women, Chromepet, Chennai 600 044, India.
authors.forename: Srinivasakannan
authors.initials: S
authors.lastname: Lakshmi
keywords: crystal structure; ferrocen­yl; hydrogen bonds; pyrrolidizine; quinoxaline