Terahertz study of L-asparagine and its monohydrate
文献类型：期刊论文
| 作者 | Yang, JQ ; Li, SX ; Zhao, HW ; Zhang, JB ; Yang, N ; Jing, DD ; Wang, CY ; Han, JG |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2014 |
| 卷号 | 63期号:13 |
| 关键词 | TIME-DOMAIN SPECTROSCOPY DENSITY-FUNCTIONAL THEORY SOLID-STATE VIBRATIONAL-MODES AMINO-ACIDS SPECTRA RELAXATION |
| ISSN号 | 1000-3290 |
| 通讯作者 | zhaohongwei@sinap.ac.cn ; jiaghan@tju.edu.cn |
| 英文摘要 | Low-frequency collective vibrational modes of biomolecules which often lie in terahertz (THz) band, make the terahertz time-domain spectroscopy (THz-TDS) an important technique for molecular identification and medicine quality inspection. Distinctive THz spectra between L-asparagine and its monohydrate were observed and the dehydration process of L-asparagine monohydrate was tracked by THz-TDS. Experiments indicate that THz wave is sensitive to phase transitions in crystals, dehydration process, and weak molecular interactions. Multi-techniques including differential scanning calorimetry and thermogravimetry, Fourier transform infrared spectroscopy, and powder X-ray diffraction are performed to investigate the thermodynamic properties, intermolecular and intramolecular vibrations, and molecular packing patterns of L-asparagine and its monohydrate. These measurements support the reliability of THz spectroscopy. To simulate and analyse the vibration modes of L-asparagine monohydrate, density functional theory calculations are performed using a Perdew Burke and Ernzerhof generalized gradient approach; the results agree well with the experimental observations. |
| 收录类别 | SCI |
| 语种 | 中文 |
| WOS记录号 | WOS:000338765700013 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14476]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Yang, JQ,Li, SX,Zhao, HW,et al. Terahertz study of L-asparagine and its monohydrate[J]. ACTA PHYSICA SINICA,2014,63(13). |
| APA | Yang, JQ.,Li, SX.,Zhao, HW.,Zhang, JB.,Yang, N.,...&Han, JG.(2014).Terahertz study of L-asparagine and its monohydrate.ACTA PHYSICA SINICA,63(13). |
| MLA | Yang, JQ,et al."Terahertz study of L-asparagine and its monohydrate".ACTA PHYSICA SINICA 63.13(2014). |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。