Adsorption of N-(1-(2-bromophenyl)-2-(2-nitrophenyl)ethyl)-4-methylbenzenesulfonamide on silver nanoparticles: SERS investigation

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Mar 5:138:234-40. doi: 10.1016/j.saa.2014.11.044. Epub 2014 Nov 28.

Abstract

SERS provides essential data regarding the interaction of molecules in drugs with DNA. In the present study silver nanoparticles were synthesized using a solution combustion method with urea as fuel. The prepared silver nanoparticles are rod like structure. Surface-enhanced Raman scattering (SERS) of N-(1-2-bromophenyl)-2-(2-nitrophenyl)ethyl)-4-methylbenzenesulfonamide (BrS) adsorbed on the silver nanoparticle was studied. The nRs and Raman spectral analysis reveal that the BrS adsorbed tilted orientation on the silver surface. Vibrational modes of nRs along with HF calculations are also performed to study the HOMO and LUMO behavior and vibrational features of BrS.

Keywords: Combustion method; Hartree Fock; N-(1-(2-bromophenyl)-2-(2-nitrophenyl)ethyl)-4-methylbenzenesulfonamide; Silver nanoparticles; Surface enhanced Raman scattering; XRD.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Benzene / chemistry
  • Computer Simulation
  • Metal Nanoparticles / chemistry*
  • Microscopy, Electron, Scanning
  • Models, Chemical
  • Molecular Conformation
  • Nanotechnology
  • Nitro Compounds / chemistry*
  • Silver / chemistry*
  • Silver Compounds
  • Spectrum Analysis, Raman*
  • Sulfonamides / chemistry*
  • Surface Properties
  • Vibration
  • X-Ray Diffraction

Substances

  • N-(1-(2-bromophenyl)-2-(2-nitrophenyl)ethyl)-4-methylbenzenesulfonamide
  • Nitro Compounds
  • Silver Compounds
  • Sulfonamides
  • Silver
  • Benzene