Raman and surface enhanced Raman scattering study of the orientation of cruciform 9,10-anthracene thiophene and furan derivatives deposited on a gold colloidal surface

J. Muñoz-Pérez, P. Leyton, C. Paipa, J. P. Soto, J. Brunet, J. S. Gómez-Jeria, M. M. Campos-Vallette

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The 9,10-di(thiophen-2-yl)anthracene (TAT), 9,10-di(furan-2-yl)anthracene (FAF) and 2-[(10-(thiophen-2-yl)anthracen-9-yl)]furan (TAF) cruciform molecular systems were synthesized using one-step coupling reactions and structurally characterized via Raman, infrared, 1H NMR, 13C NMR and mass spectroscopies. The orientation of the analytes on a gold colloidal surface was inferred from a surface-enhanced Raman scattering (SERS) study. The metal surface interaction was driven by the S and O atoms of the thiophene and furan α-substituents, and the plane of the anthracene fragment remained parallel to the surface. Theoretical calculations based on a simplified molecular model for the analyte-surface interaction provide a good representation of the experimental data.

Original languageEnglish
Pages (from-to)198-204
Number of pages7
JournalJournal of Molecular Structure
Volume1122
DOIs
StatePublished - 15 Oct 2016
Externally publishedYes

Keywords

  • Cruciform
  • Gold cluster
  • Raman spectrum
  • Surface-enhanced Raman scattering

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