文献类型：期刊文献

英文题名：Terahertz Spectra of Ninhydrin and Indane-1,2,3-Trione

作者：Zou, Tao[1,2,3];Li, Shaoping[1];Pan, Tingting[1,2,3];Zhang, Bo[1,2,3];Yu, Zheng[2,3];Li, Xindi[1];Zhang, Jianbing[2,3];Zhao, Hongwei[2,3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Div Interfacial Water, Shanghai 201800, Peoples R China;[3]Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

年份：2017

卷号：38

期号：7

起止页码：896

外文期刊名：JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES

收录：;EI(收录号：20171203488343);WOS:【SCI-EXPANDED(收录号:WOS:000402549900009)】；

基金：This work was supported by the Main Direction Program of Knowledge Innovation and Open Project Program of Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, the National Science Foundation No. 10574134, and the National Basic Research Program of China No. 2014CB339806.

语种：英文

外文关键词：Indane-12,3-trione; Ninhydrin; Terahertz; Density functional theory; The vibrational mode

摘要：Distinctive terahertz (THz) absorption spectra of ninhydrin and indane-1,2,3-trione ranging from 0.5 to 4.5 THz were observed firstly in our experiment by terahertz time-domain spectroscopy (THz-TDS). The dehydration process of ninhydrin was also monitored online. The experimental results indicate that THz spectroscopy is highly sensitive to the crystal structure, weak intermolecular interactions, and the environmental change. Multitechniques including differential scanning calorimetry (DSC) and powder X-ray diffraction (PXRD) were also carried out to further investigate ninhydrin and indane-1,2,3-trione. And the results support the reliability of THz spectroscopy. Density functional theory (DFT) calculations based on the samples' crystalline structures were performed for better understanding the THz characteristic spectra. The calculations agree with the experimental observation, and the corresponding vibrational modes of ninhydrin and indane-1,2,3-trione are assigned.