The Role of Fermi and Darling–Dennison Resonances in the Formation of the Raman Spectra of Water and Water–Ethanol Solutions

Abstract

Experimental studies show that Fermi and Darling–Dennison resonances make substantial contribution to the formation of Raman spectra of water and water–ethanol solutions. Based on the analysis of spectra with an optimization algorithm, constants of interactions W and contributions of Fermi resonance to Raman spectra of water and water–ethanol solutions are calculated at 25°C.