Vibrational sum frequency generation spectroscopy of the air/water interface
文献类型：期刊论文
| 作者 | Sun, Q.1; Guo, Y.2 |
| 刊名 | JOURNAL OF MOLECULAR LIQUIDS
 |
| 出版日期 | 2016 |
| 卷号 | 213页码:28-32 |
| 关键词 | Air/water interface Bulk water Hydrogen bonding SFG Raman |
| 英文摘要 | Vibrational sum frequency generation (SFG) spectroscopy is employed to investigate the water structure at an air/water interface. By obtaining the SFG intensity using different polarizations, it is reasonable to deconvolute the conventional SFG spectrum into five sub -bands, which are located at 3100, 3200, 3400, 3550 and 3700 cm(-1). In comparison with the Raman OH stretching bands of liquid water, we suggest that the five fitted sub -bands can be attributed to OH vibrations engaged in various local hydrogen-bonded networks, such as single donor-double acceptor (DAA), double donor-double acceptor (DDAA), single donor-single acceptor (DA), double donor-single acceptor (DDA), and free-OH vibrations, respectively. Owing to the truncations of hydrogen bonds at the air/water interface, obvious structural differences between interfacial water and bulk water can be expected. For ambient water, both DA and DDAA are the primary hydrogen-bonded networks. By contrast, DA hydrogen bonding can be regarded as the primary structural motif at the air/water interface. Additionally, we suggest that the loss of DDAA hydrogen bonding at the air/water interface provides the physical origin of surface tension, which can be applied to understand the formation of a water droplet. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/33813]  |
| 专题 | 化学研究所_其它 |
| 作者单位 | 1.Peking Univ, Sch Earth & Planetary Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Q.,Guo, Y.. Vibrational sum frequency generation spectroscopy of the air/water interface[J]. JOURNAL OF MOLECULAR LIQUIDS,2016,213:28-32. |
| APA | Sun, Q.,&Guo, Y..(2016).Vibrational sum frequency generation spectroscopy of the air/water interface.JOURNAL OF MOLECULAR LIQUIDS,213,28-32. |
| MLA | Sun, Q.,et al."Vibrational sum frequency generation spectroscopy of the air/water interface".JOURNAL OF MOLECULAR LIQUIDS 213(2016):28-32. |
入库方式： OAI收割
来源：化学研究所
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