Terahertz spectroscopic investigation of gallic acid and its monohydrate
文献类型：期刊论文
| 作者 | Zhang, B; Li, SP; Wang, CY; Zou, T; Pan, TT; Zhang, JB; Xu, Z; Ren, GH; Zhao, HW |
| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| 出版日期 | 2018 |
| 卷号 | 190页码:40-46 |
| 关键词 | Time-domain Spectroscopy Dehydration Kinetics Spectra Crystals |
| ISSN号 | 1386-1425 |
| DOI | 10.1016/j.saa.2017.09.004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The low-frequency spectra of gallic acid (GA) and its monohydrate were investigated by terahertz time-domain spectroscopy (THz-TDS) in the range of 0.5 to 4.5 THz. The dehydration process of GA monohydrate was monitored on-line. The kinetic mechanism of the dehydration process was analyzed depending on the THz spectral change at different temperatures. The results indicate that the diffusion of water molecule dominates the speed of the entire dehydration process. Solid-state density functional theory (DFT) calculations of the vibrational modes of both GA and its monohydrate were performed based on their crystalline structures for better interpreting the experimental THz spectra. The results demonstrate that the characterized features of GA mainly originate from the collective vibrations of molecules. And the interactions between GA and water molecules are responsible for THz fingerprint of GA monohydrate. Multi-techniques including differential scanning calorimetry and thermogravimetry (DSC-TG) and powder X-ray diffraction (PXRD) were also carried out to further investigate GA and its monohydrate. (C) 2017 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000415912500006 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/29169]  |
| 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 |
| 作者单位 | 1.Zhang, B 2.Li, SP 3.Wang, CY 4.Zou, T 5.Pan, TT 6.Zhang, JB 7.Xu, Z 8.Ren, GH 9.Zhao, HW |
| 推荐引用方式 GB/T 7714 | Zhang, B,Li, SP,Wang, CY,et al. Terahertz spectroscopic investigation of gallic acid and its monohydrate[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2018,190:40-46. |
| APA | Zhang, B.,Li, SP.,Wang, CY.,Zou, T.,Pan, TT.,...&Zhao, HW.(2018).Terahertz spectroscopic investigation of gallic acid and its monohydrate.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,190,40-46. |
| MLA | Zhang, B,et al."Terahertz spectroscopic investigation of gallic acid and its monohydrate".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 190(2018):40-46. |
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。