Tuning the photophysical properties of ESIPT active unsymmetrical azine dyes by the change in the substituent and solvent: TD-PBE0 and TD-CAM-B3LYP studies

The photophysical properties of the designed ESIPT active as well as donor–acceptor structured unsymmetrical azine dyes L1 – L5 were investigated at PBE0/6-31++G(d,p) and CAM-B3LYP/6-31++G(d,p) levels of theory in the gas phase and solvent media.