Calculation of spectral shifts in UV-visible region and photoresponsive behaviour of fluorinated liquid crystals: Effect of solvent and substituent

► The strongest bands of FLUORO molecules can be assigned as π → π∗ transitions. ► A small red-shift indicates a weak exciton coupling of chromophores. ► No n → π∗ transition occurs due to the rigidity of the ring system of the molecules. ► The HOMO, LUMO, and Eg values have been found to be independent of solvent effect.