| Title | Asynchronous Orthogonal Sample Design Scheme for Two-Dimensional Correlation Spectroscopy (2D-COS) and Its Application in Probing Intermolecular Interactions from Overlapping Infrared (IR) Bands |
| Authors | Li, Xiaopei Pan, Qinghua Chen, Jing Liu, Shaoxuan He, Anqi Liu, Cuige Wei, Yongju Huang, Kun Yang, Limin Feng, Juan Zhao, Ying Xu, Yizhuang Ozaki, Yukihiro Noda, Isao Wu, Jinguang |
| Affiliation | Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Peoples R China. Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China. Peking Univ, State Key Lab Nucl Phys & Technol, Inst Heavy Ion Phys, Sch Phys, Beijing 100871, Peoples R China. Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu 610054, Peoples R China. Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China. Kwansei Gakuin Univ, Sch Sci & Technol, Dept Chem, Sanda 6691337, Japan. Procter & Gamble Co, W Chester, OH 45069 USA. |
| Keywords | Two-dimensional correlation spectroscopy 2D-COS Intermolecular interaction Asynchronous orthogonal sample design AOSD Orthogonality EXCITATION WAVELENGTH DEPENDENCE SYNCHRONOUS SPECTROSCOPY TRIBLOCK COPOLYMER FTIR SPECTROSCOPY RIBONUCLEASE-A AGGREGATION COMPONENT SURFACES SPECTRA MODEL |
| Issue Date | 2011 |
| Publisher | 应用光谱学 |
| Citation | APPLIED SPECTROSCOPY.2011,65,(8),901-917. |
| Abstract | This paper introduces a new approach to analysis of spectra called asynchronous orthogonal sample design (AOSD). Specifically designed concentration series are selected according to mathematical analysis of orthogonal vectors. Based on the AOSD approach, the interfering portion of the spectra arising strictly from the concentration effect can be completely removed from the asynchronous spectra. Thus, two-dimensional (2D) asynchronous spectra can be used as an effective tool to characterize intermolecular interactions that lead to apparent deviations from the Beer Lambert law, even if the characteristic peaks of two compounds are substantially overlapped. A model solution with two solutes is used to investigate the behavior of the 2D asynchronous spectra under different extents of overlap of the characteristic peaks. Simulation results demonstrate that the resulting spectral patterns can reflect subtle spectral variations in bandwidths, peak positions, and absorptivities brought about by intermolecular interaction, which are barely visualized in the conventional one-dimensional (ID) spectra. Intermolecular interactions between butanone and dimethyl formamide (DMF) in CCl4 solutions were investigated using the proposed AOSD approach to prove the applicability of the AOSD method in real chemical systems. |
| URI | http://hdl.handle.net/20.500.11897/313144 |
| ISSN | 0003-7028 |
| DOI | 10.1366/11-06250 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 物理学院 稀土材料化学与应用国家重点实验室 核物理与核技术国家重点实验室 |
