F. Rutz, R. Wilk, T. Kleine-Ostmann, J. Grunenberg, M. Koch
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THz vibrational spectra of selected tripeptides: experiments and theory
We use terahertz time-domain spectroscopy to determine the room temperature THz spectrum of different tripeptides (glutathione, gly-gly-gly and enalapril maleate). Several molecular resonances are observed which we attribute to intramolecular vibrational modes. The experimental data are compared to density functional theory (DFT) calculations.
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