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Enantiomeric Discrimination by Surface-Enhanced Raman Scattering-Chiral Anisotropy of Chiral Nanostructured Gold Films.
Liu, Zexi; Ai, Jing; Kumar, Prashant; You, Enming; Zhou, Xiong; Liu, Xi; Tian, Zhongqun; Bour, Petr; Duan, Yingying; Han, Lu; Kotov, Nicholas A; Ding, Songyuan; Che, Shunai.
Afiliação
  • Liu Z; School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China.
  • Ai J; School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China.
  • Kumar P; Department of Chemical Engineering and Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48019, USA.
  • You E; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
  • Zhou X; SynCat@Beijing, Synfuels China Technology Co., Ltd, Beijing, 101407, P. R. China.
  • Liu X; SynCat@Beijing, Synfuels China Technology Co., Ltd, Beijing, 101407, P. R. China.
  • Tian Z; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
  • Bour P; Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Fleminovo námestí 2, 16610, Prague, Czech Republic.
  • Duan Y; School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China.
  • Han L; School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China.
  • Kotov NA; Department of Chemical Engineering and Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48019, USA.
  • Ding S; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
  • Che S; School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China.
Angew Chem Int Ed Engl ; 59(35): 15226-15231, 2020 Aug 24.
Article em En | MEDLINE | ID: mdl-32424964
A surface-enhanced Raman scattering-chiral anisotropy (SERS-ChA) effect is reported that combines chiral discrimination and surface Raman scattering enhancement on chiral nanostructured Au films (CNAFs) equipped in the normal Raman scattering Spectrometer. The CNAFs provided remarkably higher enhancement factors of Raman scattering (EFs) for particular enantiomers, and the SERS intensity was proportional to the enantiomeric excesses (ee) values. Except for molecules with mesomeric species, all of the tested enantiomers exhibited high SERS-ChA asymmetry factors (g), ranging between 1.34 and 1.99 regardless of polarities, sizes, chromophores, concentrations and ee. The effect might be attributed to selective resonance coupling between the induced electric and magnetic dipoles associated with enantiomers and chiral plasmonic modes of CNAFs.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article