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Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation
Lv, Kai; Lin, Lu; Wang, Xiaoyu; Zhang, Li; Guo, Yuan; Lu, Zhou; Liu, Minghua
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
2015-05-07
DOI10.1021/acs.jpclett.5b00472
6期:9页:1719-1723
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 ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]CIRCULAR-DICHROISM SPECTROSCOPY ; NONLINEAR-OPTICAL PROPERTIES ; SUM-FREQUENCY GENERATION ; 2ND HARMONIC-GENERATION ; SUPRAMOLECULAR CHIRALITY ; AIR/WATER INTERFACE ; PENTACENE MONOLAYERS ; ACHIRAL TPPS ; IN-SITU ; FILMS
英文摘要With the development of the nonlinear optical technique such as SHG (second harmonic generation), the in situ measurements of the chirality in the monolayers at the air/water interface have become possible. However, when performing the SHG measurement of the chirality in a monolayer, it is still a great challenge to obtain the chiral signals with a good S/N (signal-to-noise) ratio. In this Letter, interfacial assemblies with induced supramolecular chirality were used to amplify the weak chiral SHG signals from the monolayers at the air/water interface. Tetrakis(4-sulfonatophenyl) porphyrin (TPPS) J aggregates were used as the subphase, and when chiral amphiphilic molecules were spread on it, chiral domains of the amphiphile/TPPS J aggregates were formed and then significantly amplified chiral signals that otherwise could not be detected. Moreover, the sign of the DCE (degree of chiral excess) changed with the chirality of the amphiphilic molecules, thus providing a possible way to obtain the absolute chiral information in situ in the monolayers.
语种英语
WOS记录号WOS:000355014900038
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被引频次:9[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/321008/146256
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, CAS Key Lab Colloid Interface & Thermodynam, State Key Lab Mol React Dynam, Beijing Natl Lab Mol Sci,Inst Chem, Beijing 100190, Peoples R China
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Lv, Kai,Lin, Lu,Wang, Xiaoyu,et al. Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(9):1719-1723.
APA Lv, Kai.,Lin, Lu.,Wang, Xiaoyu.,Zhang, Li.,Guo, Yuan.,...&Liu, Minghua.(2015).Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(9),1719-1723.
MLA Lv, Kai,et al."Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.9(2015):1719-1723.
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