title: The Knoevenagel product of indolin-2-one and ferrocene-1,1'-dicarbaldehyde.
abstract: Indolin-2-one (oxindole), (I), undergoes a Knoevenagel condensation with ferrocene-1,1'-dicarbaldehyde, (II), to afford the title complex 3,3'-[(E,E)-ferrocene-1,1'-diyldimethylidyne]diindolin-2-one dichloromethane disolvate, [Fe(C(28)H(20)N(2)O(2))]·2CH(2)Cl(2), (IV). The structure of (IV) contains two ferrocene complex molecules in the asymmetric unit and displays, as expected, intermolecular hydrogen bonding (N-H···O=C) between the indolin-2-one units. Intermolecular π-π stacking interactions are also observed.
authors: School of Science, University of Greenwich at Medway, Central Avenue, Chatham, Kent ME4 4TB, England.
authors: John
authors: J
authors: Spencer
authors: Birthe V
authors: BV
authors: Nielsen
authors: Michael J K
authors: MJ
authors: Thomas
authors: Louise
authors: L
authors: Male
authors: Simon J
authors: SJ
authors: Coles
mesh_terms: D018360:Crystallography, X-Ray; D005296:Ferrous Compounds / Q000737:chemistry*; D006860:Hydrogen Bonding; D007211:Indoles / Q000737:chemistry*; D000075163:Metallocenes; D008958:Models, Molecular; D015394:Molecular Structure
chemical_list: D005296:Ferrous Compounds; D007211:Indoles; D000075163:Metallocenes; C561855:ferrocene-1,1'-dicarbaldehyde; C456900:indolin-2-one; C004998:ferrocene