Terahertz and Raman spectra of non-centrosymmetrical organic molecular crystals

The terahertz waves have been applied to the spectroscopy of molecular crystals. The group based on hybrid organic-inorganic crystals like triglycine zinc chloride, triglycine sulphate, triglycine selenate, diglycine hydrobromide, diglycine hydrochloride, diglycine lithium nitrate, glycine lithium nitrate has been considered. The dispersion relation phonon-polariton have been shown between 10 cm(-1) and 80 cm-1 for diglycine lithium nitrate, triglycine zinc chloride, and diglycine hydrobromide. (C) 2014 Elsevier B.V. All rights reserved.