Analysis of vibrational spectra of nano-bio molecules: Application to metalloporphyrins

In this paper, we have applied the Lie algebraic model to nano-bio molecules to determine the vibrational spectra of different stretching and bending vibrational modes. The determined vibrational energy levels by the Lie algebraic model are compared with the experimental data. The results from the theoretical model are consistent with the experimental data. The vibrational energy levels are clustering in the excited states.