Enhanced Raman scattering from hexacyanoferrate (II) and (III) ions adsorbed on silver electrode surfaces
โ Scribed by B.H. Loo
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 487 KB
- Volume
- 213
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Enhanced Raman scattering has been observed from the hexacyanoferrate (II) and (III) ions adsorbed on Ag electrode surfaces. In the former case, five vibrational modes in the low-frequency range (214, 373,423,494 and 560 cm-') and four in the nitrilc-stretching region (2026,2067,2082 and 2122 cm-') have been observed. The results indicate that the hexacyanoferrate (II) ions are coordinated with the metal via CN bridges which lower the site symmetry of the adsorbed state, inducing SERS vibrational modes which are Raman forbidden in the bulk phase.
๐ SIMILAR VOLUMES
SERS from crystal rlolct (CV) on a Ag clectrodc was mvcslqakd under prcrrsonsncc and resonance condltlons. The ckcll~llon prolilc of the chcmaorbcd spccics is Me that of chsrolvcd mokculcs but mtcnsltirs ZUIL' =I000 tnncs luger. The Raman enhancement IS = IO8 and ckhlblts 3 spcc~lic potcntlal dcpcnd
Surface enhanced Raman scattermg (SERS) has been observed for pyndlne and h&de mns adsorbed on sllker and gold sol partdes Chloride enhances the pl-r-rrdrne signal enormously. The SER signal from h&de mns on sllter sol IS presenr I" the absenceoF pyndme in s,l.ersols rhe enhancement ,nmeasesu~th dec