Solvent effect on the spectral properties of coumarin laser dye: Estimation of ground and excited state dipole moments

Abstract

The effect of solvents on absorption and fluorescence spectra of a newly synthesized coumarin laser dye namely; 6-Methoxy-4 (2-Methoxy methyl) –Chromen-2 one (2-MMC) has been studied in different solvents at room temperature (300 K). Ground and excited state dipole moments were estimated using Lippert’s Bakhshiev’s and Kawski- Chamma-Violet’s equations. It is found that the ground state dipole moment is less than that of excited state dipole moment.The effect of solvents on absorption and fluorescence spectra of a newly synthesized coumarin laser dye namely; 6-Methoxy-4 (2-Methoxy methyl) –Chromen-2 one (2-MMC) has been studied in different solvents at room temperature (300 K). Ground and excited state dipole moments were estimated using Lippert’s Bakhshiev’s and Kawski- Chamma-Violet’s equations. It is found that the ground state dipole moment is less than that of excited state dipole moment.