1 research outputs found
Congeners of Pyrromethene-567 Dye: Perspectives from Synthesis, Photophysics, Photostability, Laser, and TD-DFT Theory
In
an attempt to develop photostable and efficient BODIPY (PM)
dyes for use in liquid dye lasers, three new congeners of widely used
laser dye, PM567, were synthesized and their photophysical properties
in various organic solvents, laser performances, and photostabilities
in a selected solvent, 1,4-dioxane, have been investigated using a
frequency doubled Q-switched (10 Hz) Nd:YAG laser at 532 nm. The results
of photostability study in nonpolar 1,4-dioxane revealed the remarkable
enhancement in stability of the novel dyes compared to that of PM567
as well as improved laser performances. Cyclic voltammetry study strongly
supports the observed enhancement in photostability of the novel dyes
compared to that of PM567. The observed properties of the novel dyes
in relation to those of PM567 have been rationalized by extensive
use of DFT and TD-DFT using the B3LYP/6-31GÂ(d) method of theory