Fig. 4

The calculated electronic structure of the anion in 1. This shows: a spin density from DFT; b the SOMO (natural orbital for the ground S = 1/2 state) from CASSCF

The calculated electronic structure of the anion in 1. This shows: a spin density from DFT; b the SOMO (natural orbital for the ground S = 1/2 state) from CASSCF