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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
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
2015-05-07
DOI10.1021/acs.jpclett.5b00472
Volume6Issue:9Pages:1719-1723
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS KeywordCIRCULAR-DICHROISM SPECTROSCOPY ; NONLINEAR-OPTICAL PROPERTIES ; SUM-FREQUENCY GENERATION ; 2ND HARMONIC-GENERATION ; SUPRAMOLECULAR CHIRALITY ; AIR/WATER INTERFACE ; PENTACENE MONOLAYERS ; ACHIRAL TPPS ; IN-SITU ; FILMS
AbstractWith 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.
Language英语
WOS IDWOS:000355014900038
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146256
Collection中国科学院大连化学物理研究所
AffiliationChinese 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
Recommended Citation
GB/T 7714
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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