Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2001-04-01

Surface-enhanced raman scattering of p-nitrothiophenol molecular vibrations of its silver salt and the surface complex formed on silver islands and colloids.

B O Skadtchenko, R Aroca

Index: Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 57A(5) , 1009-16, (2001)

Full Text: HTML

Abstract

The interpretation of the surface-enhanced Raman scattering (SERS) spectra of p-nitrothiophenol (p-NTP) is reported. SERS spectra were obtained by vacuum evaporation and casting of p-NTP onto silver island films, and also from colloidal silver solutions. The vibrational spectra of the silver salt (p-NTP-silver) were obtained for a direct comparison with the SERS of p-NTP chemically adsorbed onto Ag. Chemisorption of p-NTP through S-Ag bonding is indirectly proven by the disappearance of the S-H stretching mode. The Raman scattering spectrum of the silver salt is in good agreement with the SERS spectra of the silver surface complex. The spectral interpretation was aided using density functional theory calculations of the molecular spectra of p-NTP and that of the Ag-p-NTP.

Related Compounds

  • 4-Nitrothiophenol

Related Articles:

Ultrasensitive SERS detection of VEGF based on a self-assembled Ag ornamented-AU pyramid superstructure.

2015-06-15

[Biosens. Bioelectron. 68 , 593-7, (2015)]

SERS immunoassay based on the capture and concentration of antigen-assembled gold nanoparticles.

2016-01-01

[Talanta 146 , 388-93, (2015)]

Substrate-, wavelength-, and time-dependent plasmon-assisted surface catalysis reaction of 4-nitrobenzenethiol dimerizing to p,p'-dimercaptoazobenzene on Au, Ag, and Cu films.

2011-09-06

[Langmuir 27(17) , 10677-82, (2011)]

Rapid and simple kinetics screening assay for electrophilic dermal sensitizers using nitrobenzenethiol.

2010-05-17

[Chem. Res. Toxicol. 23(5) , 918-25, (2010)]

3-Substituted 2-halopropenals: mutagenicity, detoxification and formation from 3-substituted 2,3-dihalopropanal promutagens.

1985-01-01

[Mutat. Res. 158(1-2) , 61-8, (1985)]

More Articles...