Orientational specificity of Raman scattering from molecules adsorbed on silver electrodes
โ Scribed by Craig S. Allen; Richard P. van Duyne
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 449 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Suriace enhanced Raman (SIX) spectra of 2-. 3-, and 4-q snop)*ridine (7-i 3-, and 1CP) adsorbed on sdrer electrodes suggest that the surface enhzncement cross section of the CN stretching G&ration is stron@ dependent upon the orientation of the CN group \xith respect to the electrode surface.
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
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-')
The anion effect on the surface-enhanced Raman scattering (SERS) of interfacial water molecules on Ag electrodes has been studied by adding concentrated KCI, KRr, KI or KF solution to dilute solutions. SERS of the interfacial water was detected after adding concentrated KCI, KRr or KI solution, but