Charge transfer mechanism and the adsorptive stance of methylene blue on gold nanocolloids: a vis‐à‐vis aftermath

Charge transfer mechanism and the adsorptive stance of methylene blue on gold nanocolloids: a vis‐à‐vis aftermath

The selective enhancements of Raman bands belonging to “A” and “B” symmetry species of methylene blue (MB) molecule adsorbed on gold nanocolloids (AuNC) have been investigated in terms of Albrecht's “A” term and Herzberg–Teller (HT) contributions. Attempts have been made to correlate the orient...

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Veröffentlicht in:Journal of Raman spectroscopy 2017-01, Vol.48 (1), p.38-45
Hauptverfasser: Roy, Sannak Dutta, Sett, Pinaky, Ghosh, Manash, Chowdhury, Joydeep
Format: Artikel
Sprache:eng
Schlagworte:
Adsorptivity
Albretcht's “A” and Herzberg–Teller (HT)
bond polarizability derivatives
Charge transfer
charge transfer(CT)
Derivatives
Gold
Methylene blue
methylene blue (MB)
Nanostructure
Orientation
SE(R)RS
Surface chemistry
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Beschreibung
Zusammenfassung:The selective enhancements of Raman bands belonging to “A” and “B” symmetry species of methylene blue (MB) molecule adsorbed on gold nanocolloids (AuNC) have been investigated in terms of Albrecht's “A” term and Herzberg–Teller (HT) contributions. Attempts have been made to correlate the orientations of the molecule on the AuNC surface with the CT mechanism of SE(R)RS. The variations in bond polarizability derivatives towards selective enhancements of Raman bands are also explored. Copyright © 2016 John Wiley & Sons, Ltd. Effect of charge transfer (CT) in preferential adsorptive stance of MB on AuNC surface.
ISSN:0377-0486
1097-4555
DOI:10.1002/jrs.4981