TERAHERTZ SPECTROSCOPIC INVESTIGATION OF SALICYLIC ACID AND SODIUM SALICYLATE | |
Ding, L.1,2; Fan, W. -H.1; Song, C.1,2; Chen, X.1,2; Chen, Z. -Y.1,2 | |
作者部门 | 瞬态光学研究室 |
2019-01 | |
发表期刊 | JOURNAL OF APPLIED SPECTROSCOPY |
ISSN | 0021-9037;1573-8647 |
卷号 | 85期号:6页码:1143-1150 |
产权排序 | 1 |
摘要 | The terahertz spectra of salicylic acid and sodium salicylate are measured by broadband terahertz time-domain spectroscopy (THz-TDS). Two absorption features of salicylic acid and three characteristic features of sodium salicylate are reported for the first time. Our investigation shows that salicylic acid and sodium salicylate can be easily distinguished based on their distinctive THz spectra, which could be attributed to their intra- and intermolecular structure differences. Furthermore, solid-state density functional theory calculations reveal that the absorption features of salicylic acid mainly originate from intermolecular interactions, except for the absorption feature at 2.28 THz, while gaseous-state theory calculations show that the absorption features of sodium salicylate mainly come from intramolecular vibrations except for the absorption feature at 0.40 THz. Our investigation indicates that THz vibrational modes are highly sensitive to molecular structures and intermolecular interactions, promoting the application of THz spectroscopy in distinguishing chemicals and pharmaceuticals with similar molecular structures. |
关键词 | terahertz spectrum density functional theory intermolecular interactions intramolecular vibrations |
DOI | 10.1007/s10812-019-00773-w |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000463906800025 |
出版者 | SPRINGER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/31377 |
专题 | 瞬态光学研究室 |
通讯作者 | Fan, W. -H. |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Ding, L.,Fan, W. -H.,Song, C.,et al. TERAHERTZ SPECTROSCOPIC INVESTIGATION OF SALICYLIC ACID AND SODIUM SALICYLATE[J]. JOURNAL OF APPLIED SPECTROSCOPY,2019,85(6):1143-1150. |
APA | Ding, L.,Fan, W. -H.,Song, C.,Chen, X.,&Chen, Z. -Y..(2019).TERAHERTZ SPECTROSCOPIC INVESTIGATION OF SALICYLIC ACID AND SODIUM SALICYLATE.JOURNAL OF APPLIED SPECTROSCOPY,85(6),1143-1150. |
MLA | Ding, L.,et al."TERAHERTZ SPECTROSCOPIC INVESTIGATION OF SALICYLIC ACID AND SODIUM SALICYLATE".JOURNAL OF APPLIED SPECTROSCOPY 85.6(2019):1143-1150. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
TERAHERTZ SPECTROSCO(314KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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