| Title | Improvement of the sensitivity of the two-dimensional asynchronous spectroscopy based on the AOSD approach by using a modified reference spectrum |
| Authors | Li, Xiaopei Bi, Quan Liu, Shaoxuan Chen, Jing Yue, Shijuan Wei, Yongju Huang, Kun Zhao, Ying Liu, Huizhou Zhai, Yanjun Xu, Yizhuang Noda, Isao Wu, Jinguang |
| Affiliation | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China. Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China. Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050024, Peoples R China. Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China. Liaoning Univ Tradit Chinese Med, Coll Pharm, Shenyang 11660, Peoples R China. Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China. Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA. |
| Keywords | Two-dimensional asynchronous spectroscopy Intermolecular interaction Reference spectrum Sensitivity Signal-to-noise ratio PROBING INTERMOLECULAR INTERACTIONS INFRARED CORRELATION SPECTROSCOPY SAMPLE DESIGN SCHEME MOLECULAR RECOGNITION COMPONENT ANALYSIS FTIR SPECTROSCOPY IR SPECTROSCOPY COORDINATION MIXTURES BENZENE |
| Issue Date | 2013 |
| Publisher | 分子结构杂志 |
| Citation | JOURNAL OF MOLECULAR STRUCTURE.2013,1034,101-111. |
| Abstract | In this paper, a modified reference spectrum is utilized to generate 2D asynchronous spectra constructed by using the AOSD approach that is developed in our previous work. Mathematical analysis suggests that it is possible to enhance the intensity of cross peaks by using the modified reference spectrum. Computer simulation indicates that both intensity of cross peaks and signal-to-noise ratio of 2D spectra are improved significantly by adopting the modified reference spectrum. As a result, 2D asynchronous spectrum can be used to probe weak intermolecular interactions under the influence of spectral noise. Furthermore, experiments on acetonitrile/butanone/CCl4 system demonstrate that intensities and signal-to-noise ratio of cross peaks that reflect intermolecular interactions between acetonitrile and butanone can be enhanced remarkably by using the modified reference spectrum. (C) 2012 Elsevier B.V. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/150796 |
| ISSN | 0022-2860 |
| DOI | 10.1016/j.molstruc.2012.08.050 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 稀土材料化学与应用国家重点实验室 |
