title: 5-Chloro-5''-[4-(di-methyl-amino)-benzyl-idene]-4'-[4-(di-methyl-amino)-phen-yl]-1',1''-di-methyl-dispiro-[indoline-3,2'-pyrrolidine-3',3''-piperidine]-2,4''-dione.
abstract: The title compound, C34H38ClN5O2, has spiro links connecting the pyrrolidine ring and indole residue, as well as the piperidine and pyrrolidine rings. A half-chair conformation is found for the piperidine ring with the C atom connected to the spiro-C atom lying 0.738 (4) Å out of the plane of the remaining five atoms (r.m.s. deviation = 0.0407 Å). The methyl-ene C atom is the flap in the envelope conformation for the pyrrolidine ring. In the crystal, supra-molecular chains are sustained by alternating eight-membered {⋯HNCO}2 and 14-membered {⋯HC5O}2 synthons. Chains are connected into a three-dimensional network by (pyrrolidine-bound phenyl-meth-yl)C-H⋯π(pyrrolidine-bound phen-yl) edge-to-face inter-actions.
authors.affiliation: Solid State Department, Physics Division, National Research Centre, Dokki, Giza, Egypt.
authors.forename: I S Ahmed
authors.initials: IS
authors.lastname: Farag
authors.affiliation: Pesticide Chemistry Department, National Research Centre, Dokki, Giza 12622, Egypt.
authors.forename: Adel S
authors.initials: AS
authors.lastname: Girgis
authors.affiliation: Physics Department, Faculty of Science, Helwan University, Helwan, Cairo, Egypt.
authors.forename: A A
authors.initials: AA
authors.lastname: Ramadan
authors.affiliation: Solid State Department, Physics Division, National Research Centre, Dokki, Giza, Egypt.
authors.forename: A M
authors.initials: AM
authors.lastname: Moustafa
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink