The vibrational spectra of trehalose and glucose: Terahertz spectroscopy and density functional theory calculations

被引：0
|
作者：
Takahashi, M [1 ]
Kawazoe, Y [1 ]
Ishikawa, Y [1 ]
Ito, H [1 ]
机构：
[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan
来源：
IRMMW-THz2005: The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, Vols 1 and 2 | 2005年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The THz spectra of alpha,alpha-trehalose (alpha-D-glucopyranosyl alpha-D-glucopyranoside) and alpha-D-glucose at high resolution were measured. The low-frequency vibrational absorption bands of those compounds in THz region were assigned by density functional calculations with reliable accuracy. The peaks at 60-80 cm(-1) were assigned to torsion modes of hydroxymethyl groups in the extremely complicated THz spectrum of alpha,alpha-trehalose. In addition, several polarization-dependent signals from the motion of water molecules in crystal were found.
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页码：219 / 220
页数：2
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