This behavior is further confirmed by the observation of a lower energy absorption band (440-525 nm) in case of complex 3 and 4 with increase in concentration in DMF while no such new band is observed in the case of other complexes. Furthermore, the comparison of the absorption spectra recorded in ACN for L, 3, and 4 at a concentration of 10 M also proves the contribution of the inorganic part in the ground state properties of the complexes.