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, H-1 NMR, C-13 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 alpha-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.
- adsorption
- aromatic-hydrocarbons,
- cluster,
- cruciform,
- dqcauchile
- electronics,
- gold
- metal
- molecular
- monolayers,
- nanoparticles,
- pi-systems,
- polycyclic
- raman
- scattering,
- self-assembled
- sers,
- silver,
- spectroscopy,
- spectrum,
- surface-enhanced
- vibrational-spectra,
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