title: 6-Ferrocenoyl-7-phenyl-spiro-[hexa-hydro-pyrrolo-[1,2-c][1,3]thia-zole-5,11'-indeno-[1,2-b]quinoxaline].
abstract: In the title compound, [Fe(C5H5)(C32H24N3OS)], both the thia-zolidine ring and the pyrrolidine ring adopt an envelope conformation, with the S atom and the phenyl-bearing C atom, respectively, as the flaps. The thia-zolidine ring mean plane makes a dihedral angle of 59.08 (11)° with the pyrrolidine ring mean plane, which in turn makes a dihedral angle of 83.40 (10)° with the cyclo-pentane ring, indicating that the latter two rings are almost orthogonal to one another. In the crystal, a pair of C-H⋯O hydrogen bonds link the mol-ecules forming inversion dimers. The dimers are linked via π-π inter-actions [centroid-centroid distance = 3.7764 (10) Å] involving the quinoxaline moieties forming chains propagating along [1-10].
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Sivasubramanian
authors.initials: S
authors.lastname: Suhitha
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Krishnaswamy
authors.initials: K
authors.lastname: Gunasekaran
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: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Raghavachary
authors.initials: R
authors.lastname: Raghunathan
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Devadasan
authors.initials: D
authors.lastname: Velmurugan