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Keywords:

  • cavitands;
  • chelates;
  • cyclodextrins;
  • molecular dynamics;
  • P ligands
Thumbnail image of graphical abstract

A molecular balance wheel: Transition metals form β-cyclodextrin-derived diphosphane chelate complexes (picture: ligand structure) in which a fast oscillatory motion about the metal ion takes place (“oschelating behavior”). The observed movement occurs without dissociation of the metal–phosphorus bond.