title: 3-(Ferrocen-1-ylcarbon-yl)-1-methyl-4-(4-methyl-phen-yl)spiro-[pyrrolidine-2,11'-indeno-[1,2-b]quinoxaline].
abstract: In the title compound, [Fe(C(5)H(5))(C(32)H(26)N(3)O)], the pyrrolidine ring adopts a twist conformation. The indeno-quinoxaline ring system [86.44 (5)°], the methyl-phenyl ring [86.06 (7)°] and the ferrocene rings [82.00 (7) and 83.95 (9)°] are almost perpendicular to the pyrrolidine ring. The two cyclopentadienyl rings adopt an eclipsed conformation. The crystal structure features C-H⋯N inter-actions.
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai (Guindy) Campus, Chennai 600 025,  India.
authors.forename: B
authors.initials: B
authors.lastname: Vijayakumar
authors.forename: D
authors.initials: D
authors.lastname: Gavaskar
authors.forename: T
authors.initials: T
authors.lastname: Srinivasan
authors.forename: R
authors.initials: R
authors.lastname: Raghunathan
authors.forename: D
authors.initials: D
authors.lastname: Velmurugan