Question

What factors may cause discrepancies in the particle
in a box model for the original sequence of conjugated
molecules? What about the extra dyes?

Answer 1

Answer: Factors that cause discrepancies in the particle in the box model of conjugated molecules are Temperature, solvent relaxation, solvatochromism,

As the temperature increases vibrational energy levels of ground state are populated according to Boltzmann distribution and hence more and more transitions occur to the higher vibrational levels. on other hands at a lower temperature spectra width are reduced and exhibit enhanced vibrational information.

In the presence of different solvents, dye shows different absorption because in the presence of different solvent there is a complete shift of the fluorescence band as compare to Absorption band which is regulated by stock shift or radiationless deactivation process.

Hence Temperature and medium or solvent polarity are some factors that cause discrepancies in the dyes with conjugated systems.