title: Congeners of Pyrromethene-567 Dye: Perspectives from Synthesis, Photophysics, Photostability, Laser, and TD-DFT Theory.
abstract: 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/6-31G(d) method of theory.
authors.affiliation: †Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai, 400 019, India.
authors.forename: Kishor G
authors.initials: KG
authors.lastname: Thorat
authors.forename: Priyadarshani
authors.initials: P
authors.lastname: Kamble
authors.affiliation: †Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai, 400 019, India.
authors.forename: Ramnath
authors.initials: R
authors.lastname: Mallah
authors.forename: Alok K
authors.initials: AK
authors.lastname: Ray
authors.affiliation: †Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai, 400 019, India.
authors.forename: Nagaiyan
authors.initials: N
authors.lastname: Sekar
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D004146:Dioxanes / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D007834:Lasers; D008958:Models, Molecular; D010777:Photochemistry; D011162:Porphobilinogen / Q000737:chemistry*; D011789:Quantum Theory; D012997:Solvents / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: C095489:4,4-difluoro-4-bora-3a,4a-diaza-s-indacene; D001896:Boron Compounds; D004396:Coloring Agents; D004146:Dioxanes; D005456:Fluorescent Dyes; D012997:Solvents; C483535:pyrromethene 567; D011162:Porphobilinogen; C025223:1,4-dioxane