Journal of Photoscience

Korean Society of Photoscience (한국광과학회)
권호 표지

Estimation of Excited State Dipole Moment of Exalite Dyes by Solvatochromic Shift Studies

  • Inamdar, S. R. (Laser Spectrocopy(DRDO/KU) Programme, Department of Physics, Karnatak University) ;
  • Nadaf, Y.F. (Laser Spectrocopy(DRDO/KU) Programme, Department of Physics, Karnatak University) ;
  • Deshpande, D.K. (Laser Spectrocopy(DRDO/KU) Programme, Department of Physics, Karnatak University) ;
  • Karguppikar, A.M. (Laser Spectrocopy(DRDO/KU) Programme, Department of Physics, Karnatak University)
  • Published : 2002.03.01
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Abstract

The solvent effect in a series of polar and non-polar solvents of varying dielectric constants and refractive indices has been investigated by studying electronic spectra (S$_1$band) of a series of exalite laser dyes at room temperature (25$\pm$1$\^{C}$). These data are used to determine the magnitude ($\mu$$\_$e/) and direction ($\theta$) of the electric dipole moments in the first electronically excited state. The results indicate that the observed band systems in these compounds may be attributed to ←$\pi$ transition.

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References

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