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Keywords:

  • amidinate;
  • axial coordination;
  • chromium;
  • formation mechanism;
  • quintuple bonds
Thumbnail image of graphical abstract

Give me five! Terdentate 2,6-diamidopyridyl ligands were used to stabilize the Cr[BOND]Cr quintuple bond and have made it possible to isolate and characterize not only the Cr[BOND]Cr quintuple-bonded complex, but also the mixed-valent intermediates (CrI and CrII), which are important species in the formation of type I quintuple-bonded complexes.