Low-frequency spectra of amino acids and peptides probed by terahertz time-domain spectroscopy

被引：0
|
作者：
Ponseca, Carlito S., Jr. [1 ]
Kambara, Ohki [1 ]
Kawaguchi, Shintaro [2 ]
Tominaga, Keisuke [1 ,2 ]
机构：
[1] Kobe Univ, Mol Photosci Res Ctr, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 6578501, Japan
来源：
2009 34TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, VOLS 1 AND 2 | 2009年
关键词：
VIBRATIONAL-SPECTRA;
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：
Low-frequency spectra of amino acids and peptides of L-alanine and glycine were analyzed from the power law behavior of its absorption cross section. For amino acids the exponent around two were observed and interpreted as a collection of harmonic vibrations. However for peptides with longer chain i.e. (Gly)(4) and (L-ala)(5) exponents were reduced to 1.43 and 1.34, respectively. This behavior shows chain length dependence of the low frequency dynamics.
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页码：419 / +
页数：2
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