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Vibrational spectra and molecular orientation with experimental configuration analysis in surface sum frequency generation (SFG)
Gan, Wei; Wu, Bao-Hua; Zhang, Zhen; Guo, Yuan; Wang, Hong-Fei
刊名JOURNAL OF PHYSICAL CHEMISTRY C
2007-06-28
DOI10.1021/jp067062h
111期:25页:8716-8725
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]OPTICAL 2ND-HARMONIC GENERATION ; LIQUID-LIQUID INTERFACE ; ACID-WATER MIXTURES ; REFLECTION GEOMETRY ; ADSORPTION LAYERS ; VAPOR INTERFACE ; GAS INTERFACE ; SPECTROSCOPY ; POLARIZATION ; METHANOL
英文摘要Recent developments in sum frequency generation-vibrational spectroscopy (SFG-VS) have shown that SFG-VS is not only a spectroscopic probe of the molecular interfaces but also an important tool for studying molecular spectroscopy in general. It has been demonstrated that through polarization and symmetry analysis a few sets of polarization selection rules can explicitly help the vibrational spectral assignment. This worked because of the coherent nature and the strong orientational dependence of the SFG process from the molecular interfaces or films. In this work, we further discuss the dependence on the experimental configurations in the SFG-VS polarization analysis. Such experiment and analysis can further increase the ability of the SFG-VS as the tool for discerning spectral details and overlapping spectral features, as well as the ability to obtain detailed molecular orientational information. The experimental configuration dependence of the SFG spectra is most significant in the ppp polarization combination, less significant in the sps and ssp polarization combinations, due to the fact that ppp is the result of the combination of four different susceptibility tensor elements, while both ssp and sps are of a single tensor element. Such complexity of the ppp spectrum, which is very useful as demonstrated in this work, used to be avoided in the SFG-VS studies. The spectral details of the SFG-VS from the vapor/methanol, vapor/ethanol, and vapor/ethylene glycol interfaces are studied in different experimental configurations. The strong experimental configuration dependence observed for these liquid interfaces also indicated that they possess well-ordered interfacial structures. The concepts and conclusions in this report may find future applications in studying more complex molecular interfaces and films.
语种英语
WOS记录号WOS:000247601900003
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被引频次:50[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140448
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
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Gan, Wei,Wu, Bao-Hua,Zhang, Zhen,et al. Vibrational spectra and molecular orientation with experimental configuration analysis in surface sum frequency generation (SFG)[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(25):8716-8725.
APA Gan, Wei,Wu, Bao-Hua,Zhang, Zhen,Guo, Yuan,&Wang, Hong-Fei.(2007).Vibrational spectra and molecular orientation with experimental configuration analysis in surface sum frequency generation (SFG).JOURNAL OF PHYSICAL CHEMISTRY C,111(25),8716-8725.
MLA Gan, Wei,et al."Vibrational spectra and molecular orientation with experimental configuration analysis in surface sum frequency generation (SFG)".JOURNAL OF PHYSICAL CHEMISTRY C 111.25(2007):8716-8725.
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