To further understand the solvent dependent properties of the complexes, we recorded the absorption spectra for the complexes in ACN at 10 M. As shown in figure , the change in the solvent polarity led to a blue shift in the absorption bands. The lower energy absorption band shifts to 388 nm for 1 and 2 and 382 nm for complex 3. Additionally, the complex 3 consists of a lower energy absorption band (440-525 nm) at 10 M while this lower energy band is absent in complexes 1 and 2. The origin of the higher (382-388 nm) and lower energy band (440-525 nm) corresponds to the same transitions as observed for DMF when compared with the absorption spectra of the inorganic salts (Figure ). Therefore, the observation of band at ~440-525 nm in both the solvents suggests the origin to the similar species. Finally, from the above studies we can conclude that the lowest energy band corresponds to the halide-metal LMCT transition.