Fig. 10. Top: Calculated UV-vis spectra for complexes 1a, 1c, 1e and 1f. Bottom: Assignments for transitions with λ ≥ 350 nm and oscillator strength f_osc ≥ 0.01 for complexes 1a, 1c, 1e and 1f. MC: metal-centered, MLCT: metal-to-ligand charge transfer, ILCT: intra-ligand charge transfer and LC: ligand-centered.