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Keywords:

  • catenates;
  • helices;
  • iron compounds;
  • self-assembly;
  • silver compounds
Thumbnail image of graphical abstract

Two interlocked organometallic macrocycles make up the complex ion [FeAg2L2]4+ (1). The [2]catenate structure forms by quantitative self-assembly of two ligand strands L and FeII and AgI ions. The FeII center coordinates the tridentate subunits in a pseudooctahedral fashion, the AgI ions the bidentate subunits in a pseudotetrahedral fashion. Since the two bidentate units of each strand L are coordinated to the same AgI center, homo- and heterochiral isomers of 1 arise.