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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wu, Jinguang Zheng, Lirong Yang, Zhanlan Gao, Xiuxiang Weng, Shifu Guo, Lin Xu, Yizhuang Huang, Kun Zhang, Jin Kang, Tingguo Noda, Isao He, Anqi Liu, Yi Guo, Ran Zhao, Ying |
| Description | Country affiliation: China Author Affiliation: Guo R ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Guo L ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China); Huang K ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China); He A ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Zhang J ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China); Zheng L ( Beijing Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.); Liu Y ( Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.); Kang T ( College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China.); Gao X ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Weng S ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Zhao Y ( Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.); Yang Z ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Xu Y ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.); Noda I ( Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, United States.); Wu J ( College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.) |
| Abstract | We report a new super-concentrated HCl system prepared by using trioctylphosphine oxide (TOPO)-based reverse micelles. The observed molar ratio between acid and water (nHCl/nH2O) in the super-concentrated HCl are much higher than that in the saturated aqueous HCl solution (0.28). Moreover, FT-IR spectroscopic results reveal that a significant amount of HCl remains in the molecular form rather than being ionized into H(+) and Cl(-). As a result, two H-Cl stretching bands can be observed in the FT-IR spectrum. The super-concentrated HCl provides a unique chemical environment in which many chemical substances occur in unusual states. For example, the color of super-concentrated HCl solution containing copper ion was found to be reddish brown rather than green as in conventional state. UV-Vis-NIR spectral results indicate that both d-d transition band of Cu(2+) and charge transfer band of Cl-Cu in super-concentrated HCl underwent significant variation. Additionally, copper ions bring about remarkable variation on the hydrogen bond network among HCl in the super-concentrated HCl solution as demonstrated by FT-IR spectra. According to the EXAFS results, we suggest that copper ion may occur as HCuCl3 in the super-concentrated HCl. |
| ISSN | 13861425 |
| Volume Number | 136 Pt B |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-02-05 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hydrochloric Acid Chemistry Copper Analysis Ions Magnetic Resonance Spectroscopy Organophosphorus Compounds Solutions Spectrometry, X-ray Emission Spectrophotometry, Ultraviolet Spectroscopy, Fourier Transform Infrared Spectroscopy, Near-infrared Water Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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