The Knoevenagel product of indolin-2-one and ferrocene-1,1'-dicarbaldehyde

Acta Crystallogr C. 2011 Jul;67(Pt 7):m245-8. doi: 10.1107/S0108270111021536. Epub 2011 Jun 25.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Ferrous Compounds / chemistry*
  • Hydrogen Bonding
  • Indoles / chemistry*
  • Metallocenes
  • Models, Molecular
  • Molecular Structure

Substances

  • Ferrous Compounds
  • Indoles
  • Metallocenes
  • ferrocene-1,1'-dicarbaldehyde
  • indolin-2-one
  • ferrocene