Probing the interaction of poly(vinylpyrrolidone) with platinum nanocrystals by UV-Raman and FTIR.

@article{Borodko2006ProbingTI,
  title={Probing the interaction of poly(vinylpyrrolidone) with platinum nanocrystals by UV-Raman and FTIR.},
  author={Yuri Borodko and Susan E. Habas and Matthias Koebel and Peidong Yang and Heinz Frei and Gabor A Somorjai},
  journal={The journal of physical chemistry. B},
  year={2006},
  volume={110 46},
  pages={23052-9}
}
The vibrational spectra of platinum nanoparticles (2.4-9 nm) capped with poly(N-vinylpyrrolidone) (PVP) were investigated by deep UV-Raman and FTIR spectroscopy and compared with those of pure PVP. Raman spectra of PVP/Pt show selective enhancement of C=O, C-N, and CH2 vibrational modes attributed to the pyrrolidone ring. Selective enhancement of ring vibrations is attributed both to the resonance Raman effect and SERS chemical enhancement. A red shift of the PVP carbonyl frequency on the order… CONTINUE READING

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