Title :
THz Spectrum and Vibrational Mode of phenylalanine
Author :
Li, Yuanbo ; Zheng, Yingying ; Wang, Weining
Author_Institution :
Capital Normal Univ., Beijing
Abstract :
Thls paper reports the experimental and theoretical vibrational spectra of phenylalanine in the frequency range 0.2-2.2 THz. The absorption peaks are found at 1.23 THz and 1.99 THz by terahertz time-domain spectroscopy (THz-TDS). The vibrational modes of phenylalanine molecule are performed using the Hartree Fock method (HF) at the 6-31G level. The experimental results show significantly agreement with the theoretical results simulated by Gaussian 03 in THz range. This study presents the torsional vibrational modes of the sample.
Keywords :
HF calculations; organic compounds; submillimetre wave spectra; submillimetre wave spectroscopy; vibrational modes; Gaussian 03; Hartree Fock method; THz spectrum; absorption peaks; frequency 0.2 THz to 2.2 THz; phenylalanine molecule; terahertz time-domain spectroscopy; torsional vibrational mode; vibrational spectra; Absorption; Amino acids; Biomedical optical imaging; Frequency; Hafnium; Physics; Spectroscopy; Temperature; Time domain analysis; Vibration measurement;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368630
