Question

Transition of metal-to-ligand charge transfer (MLCT) results in the oxidation of the metal.

Answer 1

Upon the absorption of light, electrons in the metal orbitals are excited to the ligand π* orbitals. Figure 3 illustrates the metal to ligand charge transfer in a d5 octahedral complex. MLCT transitions result in intense bands. ... This transition results in the oxidation of the metal.