THz Spectrum and Vibrational Mode of phenylalanine

Author

Li, Yuanbo ; Zheng, Yingying ; Wang, Weining

Author_Institution

Capital Normal Univ., Beijing

fYear

2006

fDate

18-22 Sept. 2006

Firstpage

422

Lastpage

422

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2006.368630

Filename

4222364