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| Terahertz spectra of L-phenylalanine and its monohydrate | |
| Pan, TT; Li, SP; Zou, T; Yu, Z; Zhang, B; Wang, CY; Zhang, JB; He, MX; Zhao, HW | |
| 2017 | |
| Source Publication | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| ISSN | 1386-1425 |
| Volume | 178Pages:19-23 |
| Subtype | 期刊论文 |
| Abstract | The low-frequency vibrational property of L-phenylalanine (L-Phe) and L-phenylalanine monohydrate (L-Phe center dot H2O) has been investigated by terahertz time-domain spectroscopy (THz-TDS) at room and low temperature ranging from 0.5 to 4.5 THz. Distinctive THz absorption spectra of the two compounds were observed. Density functional theory (DFT) calculations based on the crystal structures have been performed to simulate the vibrational modes of L-Phe and L-Phe center dot H2O and the results agree well with the experimental observations. The study indicates that the characterized features of L-Phe mainly originate from the collective vibration of molecules. And the characterized features of L-Phe center dot H2O mainly come from hydrogen bond interactions between L-Phe and water molecules. L-Phe and L-Phe center dot H2O were also verified by differential scanning calorimetry and thermogravimetry (DSC-TG) and powder X-ray diffraction (PXRD) examinations. (C) 2017 Published by Elsevier B.V. |
| Keyword | L-phenylalanine Monohydrate Terahertz Absorption Spectrum Low-frequency Vibration Dft |
| DOI | 10.1016/j.saa.2017.01.050 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000397370000004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/27469 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Recommended Citation GB/T 7714 | Pan, TT,Li, SP,Zou, T,et al. Terahertz spectra of L-phenylalanine and its monohydrate[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2017,178:19-23. |
| APA | Pan, TT.,Li, SP.,Zou, T.,Yu, Z.,Zhang, B.,...&Zhao, HW.(2017).Terahertz spectra of L-phenylalanine and its monohydrate.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,178,19-23. |
| MLA | Pan, TT,et al."Terahertz spectra of L-phenylalanine and its monohydrate".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 178(2017):19-23. |
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| Terahertz spectra of（735KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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