Fig. 8

The comparison of spin density of Fe atoms obtained by Mulliken and Natural Bond Orbital (NBO) population analysis for a GR2 × 6(− 8), b GR3 × 6(− 10) and c GR4 × 6(− 10)
The comparison of spin density of Fe atoms obtained by Mulliken and Natural Bond Orbital (NBO) population analysis for a GR2 × 6(− 8), b GR3 × 6(− 10) and c GR4 × 6(− 10)