Quantum-mechanical calculation of the intensity distributions in spectra of resonance hyper-Raman scattering and two-photon absorption of indole and skatole

We have performed a quantum-mechanical calculation of the relative intensities of lines in the spectra of resonance hyper-Raman scattering and two-photon absorption of isolated indole, indole in an aqueous solution, isolated skatole, and skatole-water complex. The effects of hydrogen bonds and intermolecular interaction on the spectra have been considered. Particular features of the intensity distributions in the spectra of indole and skatole have been compared.