Covalent vs Electrostatic Interactions in Rare Earth Systems: A Comparative Study of U(III), U(IV), and U(V) and Nd(III) Bonding Properties by DFT and CAS-PT2 Approaches (dagger).
A description of the electronic structure of F(3)UCO, F(3)NdCO, F(4)UCO, and F(5)UCO has been obtained by Complete Active Space second-order perturbation theory CASPT2 calculations using a relativistic effective core potential. These multiconfigurational calculations have been compared to the DFT description combined with a quasi-relativistic ZORA scalar approach. Geometries have been optimized fo
