Absorption and
fl
uorescence spectra of two oxazine dyes were recorded in various solvents in the range
of 300
–
800 nm, at room temperature. The solvatochromic behavior of these substances and their
solvent
–
solute interactions, both speci
fi
c and non-speci
fi
c, was analyzed using linear solvation energy
relationship concept, suggested by Kamlet
–
Taft. The ground and excited state dipole moments of these
substances and molecular resonance structures were also evaluated by a solvatochromic shift method
کلید واژگان :
Oxazine dye Solvent–solute interaction Linear solvationenergyrelationship Dipole moment
