Title :
THz vibrational spectra of selected tripeptides: experiments and theory
Author :
Rutz, F. ; Wilk, R. ; Kleine-Ostmann, T. ; Grunenberg, J. ; Koch, M.
Author_Institution :
Inst. fur Hochfrequenztech., Technische Univ. Braunschweig, Germany
fDate :
27 Sept.-1 Oct. 2004
Abstract :
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.
Keywords :
absorption coefficients; molecular biophysics; submillimetre wave spectra; vibrational modes; 293 to 298 K; THz vibrational spectra; density functional theory; intramolecular vibrational modes; molecular resonances; terahertz time domain spectroscopy; tripeptides; Antenna measurements; Finite impulse response filter; Frequency measurement; Molecular biophysics; Optical pulse generation; Proteins; Pulse measurements; Resonance; Spectroscopy; Temperature;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422303
