ENHANCED RAMAN-SCATTERING FROM HEXACYANOFERRATE(II) AND HEXACYANOFERRATE(III) IONS ADSORBED ON SILVER ELECTRODE SURFACES

Authors
LOO BH
Citation
Bh. Loo, ENHANCED RAMAN-SCATTERING FROM HEXACYANOFERRATE(II) AND HEXACYANOFERRATE(III) IONS ADSORBED ON SILVER ELECTRODE SURFACES, Chemical physics letters, 213(5-6), 1993, pp. 479-484
Citations number
18
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
213
Issue
5-6
Year of publication
1993
Pages
479 - 484
Database
ISI
SICI code
0009-2614(1993)213:5-6<479:ERFHAH>2.0.ZU;2-7
Abstract
Enhanced Raman scattering has been observed from the hexacyanoferrate (II) and (III) ions adsorbed on Ag electrode surfaces. In the former c ase, five vibrational modes in the low-frequency range (214, 373, 423, 494 and 560 cm-1) and four in the nitrile-stretching region (2026, 20 67, 2082 and 2122 cm-1) have been observed. The results indicate that the hexacyanoferrate (II) ions are coordinated with the metal via CN b ridges which lower the site symmetry of the adsorbed state, inducing S ERS vibrational modes which are Raman forbidden in the bulk phase.