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Keywords:

  • actinides;
  • amides;
  • density functional calculations;
  • electronic structure;
  • EPR spectroscopy

Minimal structural changes accompany the oxidation of the paramagnetic uranium(V) anion [U(dbabh)6] to the neutral, diamagnetic counterpart [U(dbabh)6] (see structure). These two Th-symmetric complexes, which were synthesized starting from 2,3:5,6-dibenzo-7-azabicyclo[2.2.1]hepta-2,5-diene (Hdbabh), are the first isolable homoleptic hexakisamido complexes of uranium(V) and (VI).

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