• A K Maiti

      Articles written in Journal of Chemical Sciences

    • Correlative studies on the absorption and emission characteristics of isomeric chlorobenzonitriles

      A K Maiti S K Sarkar G S Kastha

      More Details Abstract Fulltext PDF

      Absorption, fluorescence and phosphorescence characteristics of isomeric chlorobenzonitriles have been studied and similarities and differences in these have been noted and compared with those of analogous compounds reported in the literature. The variations in absorption spectral characteristics have been explained and the correlation between the dipole moments of the molecules and the energy of the energy of the para isomers has been elucidated. Analyses of the phosphorescence data have led to the conclusion that internal heavy atom spin-orbit coupling effect is important in the chlorobenzonitriles and that the radiative and nonradiative rates from their triplet states may be reasonably rationalized on this basis.

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