Ground and excited state dipole moments of exalite 404 and exalite 417 UV laser dyes determined from solvatochromic shifts of absorption and fluorescence spectra

Solvent effect on the spectral properties of dipolar laser dyes: Evaluation of ground and excited state dipole moments

“…Solvent polarity is the most significant property which can alter the position of the absorption or emission band of molecules by solvating a solute molecule or any other molecular species introduced into the solvent milieu. Numerous articles on the studies of simple organic molecules with regard to their interactions in different solvents are reported in literature [2][3][4][5][6][7][8][9]. On the other hand, the fluorescent dye molecules are complex organic molecules which might carry charge centers and are thus prone to absorption changes in different media [10,11].…”

Effect of positional substitution of amino group on excited state dipole moments of quinoline

“…However, the experimental determination of dipole moment based on the analysis of the solvatochromism of absorption and fluorescence maxima is quite popular. Many workers have reported the ground state and excited state dipole moments using different solvatochromic methods [17][18][19][20][21][22][23][24][25][26][27].…”

Indicating pressure and environmental effects by means of the spectral shift with rhodamine B and fluorescein

“…3 Both the Bakhshiev and the Kawski-Chamma-Viallet function exhibit linear dependence on the Stokes shift λ a -λ e . This is frequently utilized for determining m 1 and m 2 , and from these the solute dipole moments of the ground and excited state, by measuring the solvatochromic shifts of a solute dye in different solvents of known ε and n. 25,27 In this work the two polarity functions were combined to eliminate λ a , which gives Eq. (2) (see Eqs.…”